Major party competition in state legislative elections, 2020

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Last updated on November 18, 2024

There were 5,875 state legislative seats up for election on November 3, 2020, in 44 states. Of that total, 2,044 (35%) were uncontested and had no major party competition. The remaining 3,831 (65%) were contested by both major parties. This was the smallest number of seats with no major party competition since Ballotpedia began gathering data in 2010.

A seat has major party competition when candidates from both major parties are on the general election ballot. When only one major party is running for a seat, it has no major party competition and is effectively guaranteed to the major party candidate on the ballot. Learn more about the terms and methodologies used in this analysis.

Ballotpedia uses the level of major party competition to help determine the overall competitiveness of an election cycle. A larger number of seats without major party competition indicates fewer options on the ballot. A smaller number indicates more options.

In 2020:

Democrats were guaranteed to win 1,030 seats (18%) that lacked Republican competition, a 20% decrease from 2018.

Republicans were guaranteed to win 1,011 seats (17%) that lacked Democratic competition, a 35% increase from 2018.

Overall, Democrats ran for 4,861 seats (83%) and Republicans ran for 4,842 (82%).

There were three seats guaranteed to minor party or independent candidates because no major party candidates ran.

The total number of seats without major party competition—2,044—was less than in 2018 (2,046).

Major party competition in state legislative elections, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	4,710	852	18.1%	808	17.2%	1,663	35.3%	3,047	64.7%
Senate	1,165	178	15.3%	203	17.4%	381	32.7%	784	67.3%
Total	5,875	1,030	17.5%	1,011	17.2%	2,044	34.8%	3,831	65.2%

The chart below compares states by the percentage of seats contested by each of the major parties. In states located in the upper-right corner, almost all seats were contested by both major parties.

Click [show] on the table below to view incumbents in contested primaries statistics by state in 2020. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections, 2020
State	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
Nationwide	5,875	1,030	17.5%	1,011	17.2%	2,044	34.8%	3,831	65.2%
Alaska	50	9	18.0%	18	36.0%	28	56.0%	22	44.0%
Arizona	90	15	16.7%	21	23.3%	36	40.0%	54	60.0%
Arkansas	117	16	13.7%	55	47.0%	71	60.7%	46	39.3%
California	100	22	22.0%	5	5.0%	27	27.0%	73	73.0%
Colorado	83	9	10.8%	2	2.4%	11	13.3%	72	86.7%
Connecticut	187	27	14.4%	9	4.8%	36	19.3%	151	80.7%
Delaware	52	17	32.7%	9	17.3%	26	50.0%	26	50.0%
Florida	140	27	19.3%	1	0.7%	28	20.0%	112	80.0%
Georgia	236	68	28.8%	53	22.5%	121	51.3%	115	48.7%
Hawaii	64	31	48.4%	0	0.0%	31	48.4%	33	51.6%
Idaho	105	4	3.8%	49	46.7%	53	50.5%	52	49.5%
Illinois	138	59	42.8%	15	10.9%	74	53.6%	64	46.4%
Indiana	125	21	16.8%	20	16.0%	41	32.8%	84	67.2%
Iowa	125	24	19.2%	18	14.4%	42	33.6%	83	66.4%
Kansas	165	13	7.9%	44	26.7%	57	34.5%	108	65.5%
Kentucky	119	21	17.6%	30	25.2%	51	42.9%	68	57.1%
Maine	186	28	15.1%	16	8.6%	44	23.7%	142	76.3%
Massachusetts	200	141	70.5%	17	8.5%	158	79.0%	42	21.0%
Michigan	110	1	0.9%	0	0.0%	1	0.9%	109	99.1%
Minnesota	201	4	2.0%	3	1.5%	7	3.5%	194	96.5%
Missouri	180	33	18.3%	57	31.7%	90	50.0%	90	50.0%
Montana	125	9	7.2%	36	28.8%	45	36.0%	80	64.0%
Nebraska	25	3	12.0%	8	32.0%	11	44.0%	14	56.0%
Nevada	52	10	19.2%	8	15.4%	18	34.6%	34	65.4%
New Hampshire	424	17	4.0%	6	1.4%	23	5.4%	401	94.6%
New Mexico	112	11	9.8%	21	18.8%	32	28.6%	80	71.4%
New York	213	61	28.6%	16	7.5%	77	36.2%	136	63.8%
North Carolina	170	10	5.9%	4	2.4%	14	8.2%	156	91.8%
North Dakota	69	1	1.4%	14	20.3%	15	21.7%	54	78.3%
Ohio	115	7	6.1%	16	13.9%	23	20.0%	92	80.0%
Oklahoma	125	7	5.6%	70	56.0%	77	61.6%	48	38.4%
Oregon	75	11	14.7%	0	0.0%	11	14.7%	64	85.3%
Pennsylvania	228	41	18.0%	39	17.1%	80	35.1%	148	64.9%
Rhode Island	113	71	62.8%	6	5.3%	77	68.1%	36	31.9%
South Carolina	170	30	17.6%	59	34.7%	89	52.4%	81	47.6%
South Dakota	105	5	4.8%	45	42.9%	50	47.6%	55	52.4%
Tennessee	115	21	18.3%	48	41.7%	69	60.0%	46	40.0%
Texas	166	32	19.3%	27	16.3%	59	35.5%	107	64.5%
Utah	90	2	2.2%	29	32.2%	31	34.4%	59	65.6%
Vermont	180	53	29.4%	23	12.8%	78	43.3%	102	56.7%
Washington	123	19	15.4%	12	9.8%	31	25.2%	92	74.8%
West Virginia	117	4	3.4%	18	15.4%	22	18.8%	95	81.2%
Wisconsin	115	10	8.7%	15	13.0%	25	21.7%	90	78.3%
Wyoming	75	5	6.7%	49	65.3%	54	72.0%	21	28.0%

Historical comparison

The chart below shows a breakdown of major party competition in state legislative elections from 2010 to 2020.

Click [show] on the table below to view overall major party competition statistics by state from 2010 to 2020. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections, 2010-2020
State
	2010			2012			2014			2016			2018			2020
	D	R	C	D	R	C	D	R	C	D	R	C	D	R	C	D	R	C
Nationwide	16%	19%	65%	19%	21%	60%	21%	23%	56%	22%	21%	58%	21%	12%	66%	18%	17%	65%
Alaska	24%	20%	56%	8%	22%	69%	22%	11%	67%	22%	26%	52%	12%	12%	76%	18%	36%	44%
Arizona	19%	24%	57%	26%	26%	49%	17%	24%	59%	29%	26%	46%	26%	8%	67%	17%	23%	60%
Arkansas	45%	22%	32%	25%	27%	47%	28%	41%	31%	23%	53%	24%	17%	43%	40%	14%	47%	39%
California	6%	2%	92%	19%	7%	74%	18%	7%	75%	22%	5%	73%	27%	0%	73%	22%	5%	73%
Colorado	1%	14%	85%	0%	14%	86%	4%	20%	77%	10%	10%	81%	11%	1%	88%	11%	2%	87%
Connecticut	16%	10%	75%	13%	9%	79%	16%	12%	72%	12%	14%	74%	11%	3%	87%	14%	5%	81%
Delaware	19%	15%	65%	37%	13%	50%	29%	14%	57%	38%	15%	46%	25%	8%	67%	33%	17%	50%
Florida	20%	30%	50%	16%	39%	45%	21%	38%	41%	23%	31%	46%	26%	9%	66%	19%	1%	80%
Georgia	31%	36%	33%	27%	50%	23%	28%	51%	20%	28%	54%	19%	28%	33%	39%	29%	22%	49%
Hawaii	5%	5%	91%	36%	3%	62%	32%	0%	68%	48%	3%	48%	65%	3%	32%	48%	0%	52%
Idaho	3%	46%	51%	1%	25%	74%	4%	44%	52%	6%	35%	59%	3%	43%	54%	4%	47%	50%
Illinois	32%	11%	58%	33%	24%	43%	36%	25%	39%	41%	22%	37%	36%	15%	49%	43%	11%	46%
Indiana	5%	23%	72%	13%	21%	66%	16%	34%	50%	18%	18%	64%	18%	14%	69%	17%	16%	67%
Iowa	10%	22%	67%	10%	18%	72%	28%	22%	50%	17%	15%	68%	23%	6%	71%	19%	14%	66%
Kansas	12%	31%	57%	4%	27%	70%	10%	30%	60%	14%	19%	67%	20%	31%	49%	8%	27%	65%
Kentucky	19%	24%	56%	29%	27%	45%	24%	27%	50%	14%	27%	59%	7%	8%	85%	18%	25%	57%
Maine	3%	3%	94%	3%	6%	91%	6%	8%	87%	9%	5%	86%	10%	6%	84%	15%	9%	76%
Massachusetts	46%	6%	48%	57%	10%	33%	53%	9%	39%	67%	10%	23%	63%	7%	30%	71%	9%	21%
Michigan	0%	2%	98%	0%	2%	98%	0%	0%	100%	0%	0%	100%	0%	0%	100%	1%	0%	99%
Minnesota	0%	3%	97%	3%	1%	96%	1%	6%	93%	2%	1%	97%	2%	0%	98%	2%	1%	97%
Missouri	17%	26%	57%	18%	32%	49%	14%	36%	49%	19%	39%	42%	16%	10%	74%	18%	32%	50%
Montana	9%	19%	72%	7%	13%	79%	15%	1%	84%	14%	8%	78%	17%	15%	68%	7%	29%	64%
Nebraska	13%	50%	38%	16%	32%	52%	8%	58%	33%	16%	40%	44%	17%	29%	54%	12%	32%	56%
Nevada	2%	6%	92%	12%	12%	77%	19%	21%	60%	10%	15%	75%	23%	9%	68%	19%	15%	65%
New Hampshire	5%	8%	86%	9%	9%	82%	10%	11%	79%	13%	8%	79%	14%	3%	83%	4%	1%	95%
New Mexico	29%	24%	47%	29%	23%	48%	31%	19%	50%	40%	22%	38%	36%	19%	46%	10%	19%	71%
New York	15%	8%	77%	27%	10%	62%	27%	15%	58%	31%	12%	58%	31%	9%	61%	29%	8%	64%
North Carolina	8%	25%	67%	20%	23%	57%	21%	26%	52%	22%	24%	54%	1%	1%	98%	6%	2%	92%
North Dakota	4%	24%	72%	7%	11%	83%	8%	25%	67%	1%	9%	90%	4%	19%	76%	1%	20%	78%
Ohio	8%	7%	85%	8%	7%	85%	6%	13%	81%	7%	19%	74%	9%	0%	91%	6%	14%	80%
Oklahoma	18%	39%	43%	17%	48%	35%	17%	46%	37%	9%	22%	70%	12%	15%	73%	6%	56%	38%
Oregon	4%	5%	91%	7%	14%	79%	23%	13%	64%	24%	17%	59%	27%	7%	66%	15%	0%	85%
Pennsylvania	19%	22%	59%	23%	25%	52%	27%	29%	44%	23%	25%	51%	27%	12%	61%	18%	17%	65%
Rhode Island	34%	4%	63%	54%	4%	42%	70%	4%	27%	65%	4%	30%	58%	4%	38%	63%	5%	32%
South Carolina	29%	41%	30%	11%	49%	40%	26%	50%	24%	26%	50%	24%	27%	37%	36%	18%	35%	48%
South Dakota	13%	29%	58%	10%	30%	60%	14%	38%	48%	13%	24%	63%	8%	8%	85%	5%	43%	52%
Tennessee	15%	28%	58%	14%	36%	50%	15%	47%	38%	16%	36%	49%	17%	9%	73%	18%	42%	40%
Texas	23%	38%	39%	21%	43%	36%	28%	39%	33%	27%	40%	34%	23%	12%	65%	19%	16%	64%
Utah	1%	20%	79%	1%	22%	77%	4%	18%	78%	7%	31%	62%	2%	20%	78%	2%	32%	66%
Vermont	30%	14%	56%	47%	18%	33%	45%	16%	38%	36%	16%	47%	45%	15%	38%	29%	13%	57%
Washington	15%	20%	65%	19%	17%	64%	19%	18%	63%	27%	23%	50%	24%	2%	73%	15%	10%	75%
West Virginia	26%	9%	65%	21%	13%	66%	3%	14%	84%	2%	6%	92%	7%	6%	87%	3%	15%	81%
Wisconsin	12%	16%	72%	23%	5%	71%	22%	26%	52%	29%	21%	50%	28%	9%	64%	9%	13%	78%
Wyoming	9%	57%	33%	5%	68%	27%	7%	60%	33%	8%	19%	73%	7%	59%	35%	7%	65%	28%

Alaska

There were 50 seats up for election in Alaska, 22 (44%) of which were contested by both major parties. The remaining 28 seats (56%) had no major party competition.

• Democrats ran for 31 seats (62%), nine of which had no Republican competition, representing 18% of all seats up for election.
• Republicans ran for 40 seats (80%), 18 of which had no Democratic competition, representing 36% of all seats up for election.
• There was one seat uncontested by both major parties, guaranteeing that seat to minor party or independent candidates.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Alaska, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	40	8	20.0%	13	32.5%	22	55.0%	18	45.0%
Senate	10	1	10.0%	5	50.0%	6	60.0%	4	40.0%
Total	50	9	18.0%	18	36.0%	28	56.0%	22	44.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Alaska, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	50	12	24.0%	10	20.0%	22	44.0%	28	56.0%
2012	59	5	8.5%	13	22.0%	18	30.5%	41	69.5%
2014	54	12	22.2%	6	11.1%	18	33.3%	36	66.7%
2016	50	11	22.0%	13	26.0%	24	48.0%	26	52.0%
2018	50	6	12.0%	6	12.0%	12	24.0%	38	76.0%
2020	50	9	18.0%	18	36.0%	28	56.0%	22	44.0%

See also:

• Alaska House of Representatives elections, 2020
• Alaska State Senate elections, 2020

Arizona

There were 90 seats up for election in Arizona, 54 (60%) of which were contested by both major parties. The remaining 36 seats (40%) had no major party competition.

• Democrats ran for 69 seats (77%), 15 of which had no Republican competition, representing 17% of all seats up for election.
• Republicans ran for 75 seats (83%), 21 of which had no Democratic competition, representing 23% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Arizona, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	60	10	16.7%	16	26.7%	26	43.3%	34	56.7%
Senate	30	5	16.7%	5	16.7%	10	33.3%	20	66.7%
Total	90	15	16.7%	21	23.3%	36	40.0%	54	60.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Arizona, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	90	17	18.9%	22	24.4%	39	43.3%	51	56.7%
2012	90	23	25.6%	23	25.6%	46	51.1%	44	48.9%
2014	90	15	16.7%	22	24.4%	37	41.1%	53	58.9%
2016	90	26	28.9%	23	25.6%	49	54.4%	41	45.6%
2018	90	23	25.6%	7	7.8%	30	33.3%	60	66.7%
2020	90	15	16.7%	21	23.3%	36	40.0%	54	60.0%

See also:

• Arizona House of Representatives elections, 2020
• Arizona State Senate elections, 2020

Arkansas

There were 117 seats up for election in Arkansas, 46 (39%) of which were contested by both major parties. The remaining 71 seats (61%) had no major party competition.

• Democrats ran for 62 seats (53%), 16 of which had no Republican competition, representing 14% of all seats up for election.
• Republicans ran for 101 seats (86%), 55 of which had no Democratic competition, representing 47% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Arkansas, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	100	15	15.0%	47	47.0%	62	62.0%	38	38.0%
Senate	17	1	5.9%	8	47.1%	9	52.9%	8	47.1%
Total	117	16	13.7%	55	47.0%	71	60.7%	46	39.3%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Arkansas, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	117	53	45.3%	26	22.2%	79	67.5%	38	32.5%
2012	135	34	25.2%	36	26.7%	71	52.6%	64	47.4%
2014	118	33	28.0%	48	40.7%	81	68.6%	37	31.4%
2016	117	27	23.1%	62	53.0%	89	76.1%	28	23.9%
2018	118	20	16.9%	51	43.2%	71	60.2%	47	39.8%
2020	117	16	13.7%	55	47.0%	71	60.7%	46	39.3%

See also:

• Arkansas House of Representatives elections, 2020
• Arkansas State Senate elections, 2020

California

There were 100 seats up for election in California, 73 (73%) of which were contested by both major parties. The remaining 27 seats (27%) had no major party competition.

• Democrats ran for 95 seats (95%), 22 of which had no Republican competition, representing 22% of all seats up for election.
• Republicans ran for 78 seats (78%), five of which had no Democratic competition, representing 5% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in California, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	80	17	21.3%	5	6.3%	22	27.5%	58	72.5%
Senate	20	5	25.0%	0	0.0%	5	25.0%	15	75.0%
Total	100	22	22.0%	5	5.0%	27	27.0%	73	73.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in California, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	100	6	6.0%	2	2.0%	8	8.0%	92	92.0%
2012	100	19	19.0%	7	7.0%	26	26.0%	74	74.0%
2014	100	18	18.0%	7	7.0%	25	25.0%	75	75.0%
2016	100	22	22.0%	5	5.0%	27	27.0%	73	73.0%
2018	100	27	27.0%	0	0.0%	27	27.0%	73	73.0%
2020	100	22	22.0%	5	5.0%	27	27.0%	73	73.0%

See also:

• California State Assembly elections, 2020
• California State Senate elections, 2020

Colorado

There were 83 seats up for election in Colorado, 72 (87%) of which were contested by both major parties. The remaining 11 seats (13%) had no major party competition.

• Democrats ran for 81 seats (98%), nine of which had no Republican competition, representing 11% of all seats up for election.
• Republicans ran for 74 seats (89%), two of which had no Democratic competition, representing 2% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Colorado, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	65	7	10.8%	2	3.1%	9	13.8%	56	86.2%
Senate	18	2	11.1%	0	0.0%	2	11.1%	16	88.9%
Total	83	9	10.8%	2	2.4%	11	13.3%	72	86.7%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Colorado, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	84	1	1.2%	12	14.3%	13	15.5%	71	84.5%
2012	85	0	0.0%	12	14.1%	12	14.1%	73	85.9%
2014	82	3	3.7%	16	19.5%	19	23.2%	63	76.8%
2016	83	8	9.6%	8	9.6%	16	19.3%	67	80.7%
2018	82	9	11.0%	1	1.2%	10	12.2%	72	87.8%
2020	83	9	10.8%	2	2.4%	11	13.3%	72	86.7%

See also:

• Colorado House of Representatives elections, 2020
• Colorado State Senate elections, 2020

Connecticut

There were 187 seats up for election in Connecticut, 151 (81%) of which were contested by both major parties. The remaining 36 seats (19%) had no major party competition.

• Democrats ran for 178 seats (95%), 27 of which had no Republican competition, representing 14% of all seats up for election.
• Republicans ran for 160 seats (86%), nine of which had no Democratic competition, representing 5% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Connecticut, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	151	24	15.9%	8	5.3%	32	21.2%	119	78.8%
Senate	36	3	8.3%	1	2.8%	4	11.1%	32	88.9%
Total	187	27	14.4%	9	4.8%	36	19.3%	151	80.7%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Connecticut, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	187	29	15.5%	18	9.6%	47	25.1%	140	74.9%
2012	187	24	12.8%	16	8.6%	40	21.4%	147	78.6%
2014	187	30	16.0%	23	12.3%	53	28.3%	134	71.7%
2016	187	22	11.8%	27	14.4%	49	26.2%	138	73.8%
2018	187	20	10.7%	5	2.7%	25	13.4%	162	86.6%
2020	187	27	14.4%	9	4.8%	36	19.3%	151	80.7%

See also:

• Connecticut House of Representatives elections, 2020
• Connecticut State Senate elections, 2020

Delaware

There were 52 seats up for election in Delaware, 26 (50%) of which were contested by both major parties. The remaining 26 seats (50%) had no major party competition.

• Democrats ran for 43 seats (83%), 17 of which had no Republican competition, representing 33% of all seats up for election.
• Republicans ran for 35 seats (67%), nine of which had no Democratic competition, representing 17% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Delaware, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	41	15	36.6%	7	17.1%	22	53.7%	19	46.3%
Senate	11	2	18.2%	2	18.2%	4	36.4%	7	63.6%
Total	52	17	32.7%	9	17.3%	26	50.0%	26	50.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Delaware, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	52	10	19.2%	8	15.4%	18	34.6%	34	65.4%
2012	62	23	37.1%	8	12.9%	31	50.0%	31	50.0%
2014	51	15	29.4%	7	13.7%	22	43.1%	29	56.9%
2016	52	20	38.5%	8	15.4%	28	53.8%	24	46.2%
2018	51	13	25.5%	4	7.8%	17	33.3%	34	66.7%
2020	52	17	32.7%	9	17.3%	26	50.0%	26	50.0%

See also:

• Delaware House of Representatives elections, 2020
• Delaware State Senate elections, 2020

Florida

There were 140 seats up for election in Florida, 112 (80%) of which were contested by both major parties. The remaining 28 seats (20%) had no major party competition.

• Democrats ran for 139 seats (99%), 27 of which had no Republican competition, representing 19% of all seats up for election.
• Republicans ran for 113 seats (81%), one of which had no Democratic competition, representing 1% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Florida, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	120	24	20.0%	1	0.8%	25	20.8%	95	79.2%
Senate	20	3	15.0%	0	0.0%	3	15.0%	17	85.0%
Total	140	27	19.3%	1	0.7%	28	20.0%	112	80.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Florida, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	143	29	20.3%	43	30.1%	72	50.3%	71	49.7%
2012	160	26	16.3%	62	38.8%	88	55.0%	72	45.0%
2014	140	30	21.4%	53	37.9%	83	59.3%	57	40.7%
2016	160	37	23.1%	50	31.3%	87	54.4%	73	45.6%
2018	140	36	25.7%	12	8.6%	48	34.3%	92	65.7%
2020	140	27	19.3%	1	0.7%	28	20.0%	112	80.0%

See also:

• Florida House of Representatives elections, 2020
• Florida State Senate elections, 2020

Georgia

There were 236 seats up for election in Georgia, 115 (49%) of which were contested by both major parties. The remaining 121 seats (51%) had no major party competition.

• Democrats ran for 183 seats (78%), 68 of which had no Republican competition, representing 29% of all seats up for election.
• Republicans ran for 168 seats (71%), 53 of which had no Democratic competition, representing 22% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Georgia, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	180	55	30.6%	39	21.7%	94	52.2%	86	47.8%
Senate	56	13	23.2%	14	25.0%	27	48.2%	29	51.8%
Total	236	68	28.8%	53	22.5%	121	51.3%	115	48.7%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Georgia, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	236	74	31.4%	84	35.6%	158	66.9%	78	33.1%
2012	236	63	26.7%	119	50.4%	182	77.1%	54	22.9%
2014	236	67	28.4%	120	50.8%	188	79.7%	48	20.3%
2016	236	65	27.5%	127	53.8%	192	81.4%	44	18.6%
2018	236	67	28.4%	78	33.1%	145	61.4%	91	38.6%
2020	236	68	28.8%	53	22.5%	121	51.3%	115	48.7%

See also:

• Georgia House of Representatives elections, 2020
• Georgia State Senate elections, 2020

Hawaii

There were 64 seats up for election in Hawaii, 33 (52%) of which were contested by both major parties. The remaining 31 seats (48%) had no major party competition.

• Democrats ran for 64 seats (100%), 31 of which had no Republican competition, representing 48% of all seats up for election.
• Republicans ran for 33 seats (52%), all of which featured Democratic competition.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Hawaii, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	51	23	45.1%	0	0.0%	23	45.1%	28	54.9%
Senate	13	8	61.5%	0	0.0%	8	61.5%	5	38.5%
Total	64	31	48.4%	0	0.0%	31	48.4%	33	51.6%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Hawaii, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	66	3	4.5%	3	4.5%	6	9.1%	60	90.9%
2012	76	27	35.5%	2	2.6%	29	38.2%	47	61.8%
2014	63	20	31.7%	0	0.0%	20	31.7%	43	68.3%
2016	64	31	48.4%	2	3.1%	33	51.6%	31	48.4%
2018	63	41	65.1%	2	3.2%	43	68.3%	20	31.7%
2020	64	31	48.4%	0	0.0%	31	48.4%	33	51.6%

See also:

• Hawaii House of Representatives elections, 2020
• Hawaii State Senate elections, 2020

Idaho

There were 105 seats up for election in Idaho, 52 (50%) of which were contested by both major parties. The remaining 53 seats (50%) had no major party competition.

• Democrats ran for 56 seats (53%), four of which had no Republican competition, representing 4% of all seats up for election.
• Republicans ran for 101 seats (96%), 49 of which had no Democratic competition, representing 47% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Idaho, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	70	3	4.3%	30	42.9%	33	47.1%	37	52.9%
Senate	35	1	2.9%	19	54.3%	20	57.1%	15	42.9%
Total	105	4	3.8%	49	46.7%	53	50.5%	52	49.5%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Idaho, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	105	3	2.9%	48	45.7%	51	48.6%	54	51.4%
2012	105	1	1.0%	26	24.8%	27	25.7%	78	74.3%
2014	105	4	3.8%	46	43.8%	50	47.6%	55	52.4%
2016	105	6	5.7%	37	35.2%	43	41.0%	62	59.0%
2018	105	3	2.9%	45	42.9%	48	45.7%	57	54.3%
2020	105	4	3.8%	49	46.7%	53	50.5%	52	49.5%

See also:

• Idaho House of Representatives elections, 2020
• Idaho State Senate elections, 2020

Illinois

There were 138 seats up for election in Illinois, 64 (46%) of which were contested by both major parties. The remaining 74 seats (54%) had no major party competition.

• Democrats ran for 123 seats (89%), 59 of which had no Republican competition, representing 43% of all seats up for election.
• Republicans ran for 79 seats (57%), 15 of which had no Democratic competition, representing 11% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Illinois, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	118	51	43.2%	13	11.0%	64	54.2%	54	45.8%
Senate	20	8	40.0%	2	10.0%	10	50.0%	10	50.0%
Total	138	59	42.8%	15	10.9%	74	53.6%	64	46.4%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Illinois, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	139	44	31.7%	15	10.8%	59	42.4%	80	57.6%
2012	177	58	32.8%	43	24.3%	101	57.1%	76	42.9%
2014	137	50	36.5%	34	24.8%	84	61.3%	53	38.7%
2016	158	64	40.5%	35	22.2%	99	62.7%	59	37.3%
2018	157	57	36.3%	23	14.6%	80	51.0%	77	49.0%
2020	138	59	42.8%	15	10.9%	74	53.6%	64	46.4%

See also:

• Illinois House of Representatives elections, 2020
• Illinois State Senate elections, 2020

Indiana

There were 125 seats up for election in Indiana, 84 (67%) of which were contested by both major parties. The remaining 41 seats (33%) had no major party competition.

• Democrats ran for 105 seats (84%), 21 of which had no Republican competition, representing 17% of all seats up for election.
• Republicans ran for 104 seats (83%), 20 of which had no Democratic competition, representing 16% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Indiana, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	100	15	15.0%	17	17.0%	32	32.0%	68	68.0%
Senate	25	6	24.0%	3	12.0%	9	36.0%	16	64.0%
Total	125	21	16.8%	20	16.0%	41	32.8%	84	67.2%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Indiana, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	125	6	4.8%	29	23.2%	35	28.0%	90	72.0%
2012	125	16	12.8%	26	20.8%	42	33.6%	83	66.4%
2014	125	20	16.0%	42	33.6%	62	49.6%	63	50.4%
2016	125	22	17.6%	23	18.4%	45	36.0%	80	64.0%
2018	125	22	17.6%	17	13.6%	39	31.2%	86	68.8%
2020	125	21	16.8%	20	16.0%	41	32.8%	84	67.2%

See also:

• Indiana House of Representatives elections, 2020
• Indiana State Senate elections, 2020

Iowa

There were 125 seats up for election in Iowa, 83 (66%) of which were contested by both major parties. The remaining 42 seats (34%) had no major party competition.

• Democrats ran for 107 seats (86%), 24 of which had no Republican competition, representing 19% of all seats up for election.
• Republicans ran for 101 seats (81%), 18 of which had no Democratic competition, representing 14% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Iowa, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	100	21	21.0%	13	13.0%	34	34.0%	66	66.0%
Senate	25	3	12.0%	5	20.0%	8	32.0%	17	68.0%
Total	125	24	19.2%	18	14.4%	42	33.6%	83	66.4%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Iowa, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	125	13	10.4%	28	22.4%	41	32.8%	84	67.2%
2012	126	12	9.5%	23	18.3%	35	27.8%	91	72.2%
2014	125	35	28.0%	28	22.4%	63	50.4%	62	49.6%
2016	125	21	16.8%	19	15.2%	40	32.0%	85	68.0%
2018	125	29	23.2%	7	5.6%	36	28.8%	89	71.2%
2020	125	24	19.2%	18	14.4%	42	33.6%	83	66.4%

See also:

• Iowa House of Representatives elections, 2020
• Iowa State Senate elections, 2020

Kansas

There were 165 seats up for election in Kansas, 108 (65%) of which were contested by both major parties. The remaining 57 seats (35%) had no major party competition.

• Democrats ran for 121 seats (73%), 13 of which had no Republican competition, representing 8% of all seats up for election.
• Republicans ran for 152 seats (92%), 44 of which had no Democratic competition, representing 27% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Kansas, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	125	12	9.6%	34	27.2%	46	36.8%	79	63.2%
Senate	40	1	2.5%	10	25.0%	11	27.5%	29	72.5%
Total	165	13	7.9%	44	26.7%	57	34.5%	108	65.5%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Kansas, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	125	15	12.0%	39	31.2%	54	43.2%	71	56.8%
2012	165	6	3.6%	44	26.7%	50	30.3%	115	69.7%
2014	125	12	9.6%	38	30.4%	50	40.0%	75	60.0%
2016	165	23	13.9%	32	19.4%	55	33.3%	110	66.7%
2018	125	25	20.0%	39	31.2%	64	51.2%	61	48.8%
2020	165	13	7.9%	44	26.7%	57	34.5%	108	65.5%

See also:

• Kansas House of Representatives elections, 2020
• Kansas State Senate elections, 2020

Kentucky

There were 119 seats up for election in Kentucky, 68 (57%) of which were contested by both major parties. The remaining 51 seats (43%) had no major party competition.

• Democrats ran for 89 seats (75%), 21 of which had no Republican competition, representing 18% of all seats up for election.
• Republicans ran for 98 seats (82%), 30 of which had no Democratic competition, representing 25% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Kentucky, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	100	16	16.0%	24	24.0%	40	40.0%	60	60.0%
Senate	19	5	26.3%	6	31.6%	11	57.9%	8	42.1%
Total	119	21	17.6%	30	25.2%	51	42.9%	68	57.1%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Kentucky, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	119	23	19.3%	29	24.4%	52	43.7%	67	56.3%
2012	119	34	28.6%	32	26.9%	66	55.5%	53	44.5%
2014	119	28	23.5%	32	26.9%	60	50.4%	59	49.6%
2016	119	17	14.3%	32	26.9%	49	41.2%	70	58.8%
2018	119	8	6.7%	10	8.4%	18	15.1%	101	84.9%
2020	119	21	17.6%	30	25.2%	51	42.9%	68	57.1%

See also:

• Kentucky House of Representatives elections, 2020
• Kentucky State Senate elections, 2020

Maine

There were 186 seats up for election in Maine, 142 (76%) of which were contested by both major parties. The remaining 44 seats (24%) had no major party competition.

• Democrats ran for 170 seats (91%), 28 of which had no Republican competition, representing 15% of all seats up for election.
• Republicans ran for 158 seats (85%), 16 of which had no Democratic competition, representing 9% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Maine, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	151	26	17.2%	16	10.6%	42	27.8%	109	72.2%
Senate	35	2	5.7%	0	0.0%	2	5.7%	33	94.3%
Total	186	28	15.1%	16	8.6%	44	23.7%	142	76.3%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Maine, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	186	5	2.7%	6	3.2%	11	5.9%	175	94.1%
2012	186	6	3.2%	11	5.9%	17	9.1%	169	90.9%
2014	186	11	5.9%	14	7.5%	25	13.4%	161	86.6%
2016	186	16	8.6%	10	5.4%	26	14.0%	160	86.0%
2018	186	18	9.7%	12	6.5%	30	16.1%	156	83.9%
2020	186	28	15.1%	16	8.6%	44	23.7%	142	76.3%

See also:

• Maine House of Representatives elections, 2020
• Maine State Senate elections, 2020

Massachusetts

There were 200 seats up for election in Massachusetts, 42 (21%) of which were contested by both major parties. The remaining 158 seats (79%) had no major party competition.

• Democrats ran for 183 seats (92%), 141 of which had no Republican competition, representing 71% of all seats up for election. This guaranteed Democratic control of a majority of seats up for election.
• Republicans ran for 59 seats (30%), 17 of which had no Democratic competition, representing 9% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Massachusetts, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	160	109	68.1%	16	10.0%	125	78.1%	35	21.9%
Senate	40	32	80.0%	1	2.5%	33	82.5%	7	17.5%
Total	200	141	70.5%	17	8.5%	158	79.0%	42	21.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Massachusetts, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	200	92	46.0%	12	6.0%	104	52.0%	96	48.0%
2012	200	114	57.0%	20	10.0%	134	67.0%	66	33.0%
2014	200	105	52.5%	18	9.0%	123	61.5%	77	38.5%
2016	200	134	67.0%	20	10.0%	154	77.0%	46	23.0%
2018	200	126	63.0%	14	7.0%	140	70.0%	60	30.0%
2020	200	141	70.5%	17	8.5%	158	79.0%	42	21.0%

See also:

• Massachusetts House of Representatives elections, 2020
• Massachusetts State Senate elections, 2020

Michigan

There were 110 seats up for election in Michigan, 109 (99%) of which were contested by both major parties. The remaining 1 seats (1%) had no major party competition.

• Democrats ran for 110 seats (100%), one of which had no Republican competition, representing 1% of all seats up for election.
• Republicans ran for 109 seats (99%), all of which featured Democratic competition.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Michigan, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	110	1	0.9%	0	0.0%	1	0.9%	109	99.1%
Senate	Did not hold elections
Total	110	1	0.9%	0	0.0%	1	0.9%	109	99.1%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Michigan, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	148	0	0.0%	3	2.0%	3	2.0%	145	98.0%
2012	110	0	0.0%	2	1.8%	2	1.8%	108	98.2%
2014	148	0	0.0%	0	0.0%	0	0.0%	148	100.0%
2016	110	0	0.0%	0	0.0%	0	0.0%	110	100.0%
2018	148	0	0.0%	0	0.0%	0	0.0%	148	100.0%
2020	110	1	0.9%	0	0.0%	1	0.9%	109	99.1%

See also:

• Michigan House of Representatives elections, 2020

Minnesota

There were 201 seats up for election in Minnesota, 194 (97%) of which were contested by both major parties. The remaining seven seats (3%) had no major party competition.

• Democrats ran for 198 seats (99%), four of which had no Republican competition, representing 2% of all seats up for election.
• Republicans ran for 197 seats (98%), three of which had no Democratic competition, representing 1% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Minnesota, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	134	4	3.0%	1	0.7%	5	3.7%	129	96.3%
Senate	67	0	0.0%	2	3.0%	2	3.0%	65	97.0%
Total	201	4	2.0%	3	1.5%	7	3.5%	194	96.5%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Minnesota, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	201	0	0.0%	6	3.0%	6	3.0%	195	97.0%
2012	201	6	3.0%	2	1.0%	8	4.0%	193	96.0%
2014	134	1	0.7%	8	6.0%	9	6.7%	125	93.3%
2016	201	5	2.5%	2	1.0%	7	3.5%	194	96.5%
2018	134	3	2.2%	0	0.0%	3	2.2%	131	97.8%
2020	201	4	2.0%	3	1.5%	7	3.5%	194	96.5%

See also:

• Minnesota House of Representatives elections, 2020
• Minnesota State Senate elections, 2020

Missouri

There were 180 seats up for election in Missouri, 90 (50%) of which were contested by both major parties. The remaining 90 seats (50%) had no major party competition.

• Democrats ran for 123 seats (68%), 33 of which had no Republican competition, representing 18% of all seats up for election.
• Republicans ran for 147 seats (82%), 57 of which had no Democratic competition, representing 32% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Missouri, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	163	30	18.4%	53	32.5%	83	50.9%	80	49.1%
Senate	17	3	17.6%	4	23.5%	7	41.2%	10	58.8%
Total	180	33	18.3%	57	31.7%	90	50.0%	90	50.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Missouri, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	180	31	17.2%	47	26.1%	78	43.3%	102	56.7%
2012	180	33	18.3%	58	32.2%	91	50.6%	89	49.4%
2014	180	26	14.4%	65	36.1%	91	50.6%	89	49.4%
2016	180	35	19.4%	70	38.9%	105	58.3%	75	41.7%
2018	180	29	16.1%	18	10.0%	47	26.1%	133	73.9%
2020	180	33	18.3%	57	31.7%	90	50.0%	90	50.0%

See also:

• Missouri House of Representatives elections, 2020
• Missouri State Senate elections, 2020

Montana

There were 125 seats up for election in Montana, 80 (64%) of which were contested by both major parties. The remaining 45 seats (36%) had no major party competition.

• Democrats ran for 89 seats (71%), nine of which had no Republican competition, representing 7% of all seats up for election.
• Republicans ran for 116 seats (93%), 36 of which had no Democratic competition, representing 29% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Montana, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	100	8	8.0%	28	28.0%	36	36.0%	64	64.0%
Senate	25	1	4.0%	8	32.0%	9	36.0%	16	64.0%
Total	125	9	7.2%	36	28.8%	45	36.0%	80	64.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Montana, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	126	11	8.7%	24	19.0%	35	27.8%	91	72.2%
2012	126	9	7.1%	17	13.5%	26	20.6%	100	79.4%
2014	125	19	15.2%	1	0.8%	20	16.0%	105	84.0%
2016	125	18	14.4%	10	8.0%	28	22.4%	97	77.6%
2018	125	21	16.8%	19	15.2%	40	32.0%	85	68.0%
2020	125	9	7.2%	36	28.8%	45	36.0%	80	64.0%

See also:

• Montana House of Representatives elections, 2020
• Montana State Senate elections, 2020

Nebraska

There were 25 seats up for election in Nebraska, 14 (56%) of which were contested by both major parties. The remaining 11 seats (44%) had no major party competition.

• Democrats ran for 17 seats (68%), three of which had no Republican competition, representing 12% of all seats up for election.
• Republicans ran for 22 seats (88%), eight of which had no Democratic competition, representing 32% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Nebraska, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	N/A
Senate	25	3	12.0%	8	32.0%	11	44.0%	14	56.0%
Total	25	3	12.0%	8	32.0%	11	44.0%	14	56.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Nebraska, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	24	3	12.5%	12	50.0%	15	62.5%	9	37.5%
2012	25	4	16.0%	8	32.0%	12	48.0%	13	52.0%
2014	24	2	8.3%	14	58.3%	16	66.7%	8	33.3%
2016	25	4	16.0%	10	40.0%	14	56.0%	11	44.0%
2018	24	4	16.7%	7	29.2%	11	45.8%	13	54.2%
2020	25	3	12.0%	8	32.0%	11	44.0%	14	56.0%

See also:

• Nebraska State Senate elections, 2020

Nevada

There were 52 seats up for election in Nevada, 34 (65%) of which were contested by both major parties. The remaining 18 seats (35%) had no major party competition.

• Democrats ran for 44 seats (85%), 10 of which had no Republican competition, representing 19% of all seats up for election.
• Republicans ran for 42 seats (81%), eight of which had no Democratic competition, representing 15% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Nevada, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	42	7	16.7%	7	16.7%	14	33.3%	28	66.7%
Senate	10	3	30.0%	1	10.0%	4	40.0%	6	60.0%
Total	52	10	19.2%	8	15.4%	18	34.6%	34	65.4%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Nevada, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	53	1	1.9%	3	5.7%	4	7.5%	49	92.5%
2012	52	6	11.5%	6	11.5%	12	23.1%	40	76.9%
2014	53	10	18.9%	11	20.8%	21	39.6%	32	60.4%
2016	52	5	9.6%	8	15.4%	13	25.0%	39	75.0%
2018	53	12	22.6%	5	9.4%	17	32.1%	36	67.9%
2020	52	10	19.2%	8	15.4%	18	34.6%	34	65.4%

See also:

• Nevada State Assembly elections, 2020
• Nevada State Senate elections, 2020

New Hampshire

There were 424 seats up for election in New Hampshire, 401 (95%) of which were contested by both major parties. The remaining 23 seats (5%) had no major party competition.

• Democrats ran for 418 seats (99%), 17 of which had no Republican competition, representing 4% of all seats up for election.
• Republicans ran for 407 seats (96%), six of which had no Democratic competition, representing 1% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in New Hampshire, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	400	17	4.3%	6	1.5%	23	5.8%	377	94.3%
Senate	24	0	0.0%	0	0.0%	0	0.0%	24	100.0%
Total	424	17	4.0%	6	1.4%	23	5.4%	401	94.6%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in New Hampshire, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	424	23	5.4%	35	8.3%	58	13.7%	366	86.3%
2012	424	37	8.7%	38	9.0%	75	17.7%	349	82.3%
2014	424	41	9.7%	48	11.3%	89	21.0%	335	79.0%
2016	424	55	13.0%	32	7.5%	87	20.5%	337	79.5%
2018	424	61	14.4%	12	2.8%	73	17.2%	351	82.8%
2020	424	17	4.0%	6	1.4%	23	5.4%	401	94.6%

See also:

• New Hampshire House of Representatives elections, 2020
• New Hampshire State Senate elections, 2020

New Mexico

There were 112 seats up for election in New Mexico, 80 (71%) of which were contested by both major parties. The remaining 32 seats (29%) had no major party competition.

• Democrats ran for 91 seats (81%), 11 of which had no Republican competition, representing 10% of all seats up for election.
• Republicans ran for 101 seats (90%), 21 of which had no Democratic competition, representing 19% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in New Mexico, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	70	10	14.3%	13	18.6%	23	32.9%	47	67.1%
Senate	42	1	2.4%	8	19.0%	9	21.4%	33	78.6%
Total	112	11	9.8%	21	18.8%	32	28.6%	80	71.4%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in New Mexico, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	70	20	28.6%	17	24.3%	37	52.9%	33	47.1%
2012	112	32	28.6%	26	23.2%	58	51.8%	54	48.2%
2014	70	22	31.4%	13	18.6%	35	50.0%	35	50.0%
2016	112	45	40.2%	25	22.3%	70	62.5%	42	37.5%
2018	70	25	35.7%	13	18.6%	38	54.3%	32	45.7%
2020	112	11	9.8%	21	18.8%	32	28.6%	80	71.4%

See also:

• New Mexico House of Representatives elections, 2020
• New Mexico State Senate elections, 2020

New York

There were 213 seats up for election in New York, 136 (64%) of which were contested by both major parties. The remaining 77 seats (36%) had no major party competition.

• Democrats ran for 197 seats (92%), 61 of which had no Republican competition, representing 29% of all seats up for election.
• Republicans ran for 152 seats (71%), 16 of which had no Democratic competition, representing 8% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in New York, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	150	44	29.3%	11	7.3%	55	36.7%	95	63.3%
Senate	63	17	27.0%	5	7.9%	22	34.9%	41	65.1%
Total	213	61	28.6%	16	7.5%	77	36.2%	136	63.8%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in New York, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	212	32	15.1%	16	7.5%	48	22.6%	164	77.4%
2012	213	58	27.2%	22	10.3%	80	37.6%	133	62.4%
2014	213	58	27.2%	32	15.0%	90	42.3%	123	57.7%
2016	213	65	30.5%	25	11.7%	90	42.3%	123	57.7%
2018	213	65	30.5%	19	8.9%	84	39.4%	129	60.6%
2020	213	61	28.6%	16	7.5%	77	36.2%	136	63.8%

See also:

• New York State Assembly elections, 2020
• New York State Senate elections, 2020

North Carolina

There were 170 seats up for election in North Carolina, 156 (92%) of which were contested by both major parties. The remaining 14 seats (8%) had no major party competition.

• Democrats ran for 166 seats (98%), 10 of which had no Republican competition, representing 6% of all seats up for election.
• Republicans ran for 160 seats (94%), four of which had no Democratic competition, representing 2% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in North Carolina, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	120	9	7.5%	4	3.3%	13	10.8%	107	89.2%
Senate	50	1	2.0%	0	0.0%	1	2.0%	49	98.0%
Total	170	10	5.9%	4	2.4%	14	8.2%	156	91.8%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in North Carolina, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	170	14	8.2%	42	24.7%	56	32.9%	114	67.1%
2012	170	34	20.0%	39	22.9%	73	42.9%	97	57.1%
2014	170	36	21.2%	45	26.5%	81	47.6%	89	52.4%
2016	170	37	21.8%	41	24.1%	78	45.9%	92	54.1%
2018	170	2	1.2%	1	0.6%	3	1.8%	167	98.2%
2020	170	10	5.9%	4	2.4%	14	8.2%	156	91.8%

See also:

• North Carolina House of Representatives elections, 2020
• North Carolina State Senate elections, 2020

North Dakota

There were 69 seats up for election in North Dakota, 54 (78%) of which were contested by both major parties. The remaining 15 seats (22%) had no major party competition.

• Democrats ran for 55 seats (80%), one of which had no Republican competition, representing 1% of all seats up for election.
• Republicans ran for 68 seats (99%), 14 of which had no Democratic competition, representing 20% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in North Dakota, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	46	1	2.2%	7	15.2%	8	17.4%	38	82.6%
Senate	23	0	0.0%	7	30.4%	7	30.4%	16	69.6%
Total	69	1	1.4%	14	20.3%	15	21.7%	54	78.3%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in North Dakota, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	72	3	4.2%	17	23.6%	20	27.8%	52	72.2%
2012	75	5	6.7%	8	10.7%	13	17.3%	62	82.7%
2014	72	6	8.3%	18	25.0%	24	33.3%	48	66.7%
2016	69	1	1.4%	6	8.7%	7	10.1%	62	89.9%
2018	72	3	4.2%	14	19.4%	17	23.6%	55	76.4%
2020	69	1	1.4%	14	20.3%	15	21.7%	54	78.3%

See also:

• North Dakota House of Representatives elections, 2020
• North Dakota State Senate elections, 2020

Ohio

There were 115 seats up for election in Ohio, 92 (80%) of which were contested by both major parties. The remaining 23 seats (20%) had no major party competition.

• Democrats ran for 99 seats (86%), seven of which had no Republican competition, representing 6% of all seats up for election.
• Republicans ran for 108 seats (94%), 16 of which had no Democratic competition, representing 14% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Ohio, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	99	7	7.1%	16	16.2%	23	23.2%	76	76.8%
Senate	16	0	0.0%	0	0.0%	0	0.0%	16	100.0%
Total	115	7	6.1%	16	13.9%	23	20.0%	92	80.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Ohio, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	116	9	7.8%	8	6.9%	17	14.7%	99	85.3%
2012	117	9	7.7%	8	6.8%	17	14.5%	100	85.5%
2014	116	7	6.0%	15	12.9%	22	19.0%	94	81.0%
2016	115	8	7.0%	22	19.1%	30	26.1%	85	73.9%
2018	116	11	9.5%	0	0.0%	11	9.5%	105	90.5%
2020	115	7	6.1%	16	13.9%	23	20.0%	92	80.0%

See also:

• Ohio House of Representatives elections, 2020
• Ohio State Senate elections, 2020

Oklahoma

There were 125 seats up for election in Oklahoma, 48 (38%) of which were contested by both major parties. The remaining 77 seats (62%) had no major party competition.

• Democrats ran for 55 seats (44%), 7 of which had no Republican competition, representing 6% of all seats up for election.
• Republicans ran for 118 seats (94%), 70 of which had no Democratic competition, representing 56% of all seats up for election. This guaranteed Republican control of a majority of seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Oklahoma, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	101	6	5.9%	59	58.4%	65	64.4%	36	35.6%
Senate	24	1	4.2%	11	45.8%	12	50.0%	12	50.0%
Total	125	7	5.6%	70	56.0%	77	61.6%	48	38.4%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Oklahoma, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	125	22	17.6%	49	39.2%	71	56.8%	54	43.2%
2012	125	21	16.8%	60	48.0%	81	64.8%	44	35.2%
2014	1	0	0.0%	0	0.0%	0	0.0%	1	100.0%
2016	125	11	8.8%	27	21.6%	38	30.4%	87	69.6%
2018	125	15	12.0%	19	15.2%	34	27.2%	91	72.8%
2020	125	7	5.6%	70	56.0%	77	61.6%	48	38.4%

See also:

• Oklahoma House of Representatives elections, 2020
• Oklahoma State Senate elections, 2020

Oregon

There were 75 seats up for election in Oregon, 64 (85%) of which were contested by both major parties. The remaining 11 seats (15%) had no major party competition.

• Democrats ran for 75 seats (100%), 11 of which had no Republican competition, representing 15% of all seats up for election.
• Republicans ran for 64 seats (85%), all of which featured Democratic competition

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Oregon, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	60	7	11.7%	0	0.0%	7	11.7%	53	88.3%
Senate	15	4	26.7%	0	0.0%	4	26.7%	11	73.3%
Total	75	11	14.7%	0	0.0%	11	14.7%	64	85.3%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Oregon, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	76	3	3.9%	4	5.3%	7	9.2%	69	90.8%
2012	76	5	6.6%	11	14.5%	16	21.1%	60	78.9%
2014	75	17	22.7%	10	13.3%	27	36.0%	48	64.0%
2016	75	18	24.0%	13	17.3%	31	41.3%	44	58.7%
2018	73	20	27.4%	5	6.8%	25	34.2%	48	65.8%
2020	75	11	14.7%	0	0.0%	11	14.7%	64	85.3%

See also:

• Oregon House of Representatives elections, 2020
• Oregon State Senate elections, 2020

Pennsylvania

There were 228 seats up for election in Pennsylvania, 148 (65%) of which were contested by both major parties. The remaining 80 seats (35%) had no major party competition.

• Democrats ran for 189 seats (83%), 41 of which had no Republican competition, representing 18% of all seats up for election.
• Republicans ran for 187 seats (82%), 39 of which had no Democratic competition, representing 17% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Pennsylvania, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	203	36	17.7%	38	18.7%	74	36.5%	129	63.5%
Senate	25	5	20.0%	1	4.0%	6	24.0%	19	76.0%
Total	228	41	18.0%	39	17.1%	80	35.1%	148	64.9%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Pennsylvania, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	228	43	18.9%	50	21.9%	93	40.8%	135	59.2%
2012	228	53	23.2%	57	25.0%	110	48.2%	118	51.8%
2014	228	62	27.2%	65	28.5%	127	55.7%	101	44.3%
2016	228	53	23.2%	58	25.4%	111	48.7%	117	51.3%
2018	228	61	26.8%	28	12.3%	89	39.0%	139	61.0%
2020	228	41	18.0%	39	17.1%	80	35.1%	148	64.9%

See also:

• Pennsylvania House of Representatives elections, 2020
• Pennsylvania State Senate elections, 2020

Rhode Island

There were 113 seats up for election in Rhode Island, 36 (32%) of which were contested by both major parties. The remaining 77 seats (68%) had no major party competition.

• Democrats ran for 107 seats (95%), 71 of which had no Republican competition, representing 63% of all seats up for election. This guaranteed Democratic control of a majority of seats up for election.
• Republicans ran for 42 seats (37%), six of which had no Democratic competition, representing 5% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Rhode Island, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	75	49	65.3%	4	5.3%	53	70.7%	22	29.3%
Senate	38	22	57.9%	2	5.3%	24	63.2%	14	36.8%
Total	113	71	62.8%	6	5.3%	77	68.1%	36	31.9%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Rhode Island, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	113	38	33.6%	4	3.5%	42	37.2%	71	62.8%
2012	113	61	54.0%	4	3.5%	65	57.5%	48	42.5%
2014	113	79	69.9%	4	3.5%	83	73.5%	30	26.5%
2016	113	74	65.5%	4	3.5%	79	69.9%	34	30.1%
2018	113	66	58.4%	4	3.5%	70	61.9%	43	38.1%
2020	113	71	62.8%	6	5.3%	77	68.1%	36	31.9%

See also:

• Rhode Island House of Representatives elections, 2020
• Rhode Island State Senate elections, 2020

South Carolina

There were 170 seats up for election in South Carolina, 81 (48%) of which were contested by both major parties. The remaining 89 seats (52%) had no major party competition.

• Democrats ran for 111 seats (65%), 30 of which had no Republican competition, representing 18% of all seats up for election.
• Republicans ran for 140 seats (82%), 59 of which had no Democratic competition, representing 35% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in South Carolina, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	124	24	19.4%	49	39.5%	73	58.9%	51	41.1%
Senate	46	6	13.0%	10	21.7%	16	34.8%	30	65.2%
Total	170	30	17.6%	59	34.7%	89	52.4%	81	47.6%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in South Carolina, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	124	36	29.0%	51	41.1%	87	70.2%	37	29.8%
2012	170	19	11.2%	83	48.8%	102	60.0%	68	40.0%
2014	124	32	25.8%	62	50.0%	94	75.8%	30	24.2%
2016	170	45	26.5%	85	50.0%	130	76.5%	40	23.5%
2018	124	33	26.6%	46	37.1%	79	63.7%	45	36.3%
2020	170	30	17.6%	59	34.7%	89	52.4%	81	47.6%

See also:

• South Carolina House of Representatives elections, 2020
• South Carolina State Senate elections, 2020

South Dakota

There were 105 seats up for election in South Dakota, 55 (52%) of which were contested by both major parties. The remaining 50 seats (48%) had no major party competition.

• Democrats ran for 60 seats (57%), five of which had no Republican competition, representing 5% of all seats up for election.
• Republicans ran for 100 seats (95%), 45 of which had no Democratic competition, representing 43% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in South Dakota, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	70	5	7.1%	27	38.6%	32	45.7%	38	54.3%
Senate	35	0	0.0%	18	51.4%	18	51.4%	17	48.6%
Total	105	5	4.8%	45	42.9%	50	47.6%	55	52.4%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in South Dakota, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	105	14	13.3%	30	28.6%	44	41.9%	61	58.1%
2012	105	11	10.5%	31	29.5%	42	40.0%	63	60.0%
2014	105	15	14.3%	40	38.1%	55	52.4%	50	47.6%
2016	105	14	13.3%	25	23.8%	39	37.1%	66	62.9%
2018	105	8	7.6%	8	7.6%	16	15.2%	89	84.8%
2020	105	5	4.8%	45	42.9%	50	47.6%	55	52.4%

See also:

• South Dakota House of Representatives elections, 2020
• South Dakota State Senate elections, 2020

Tennessee

There were 115 seats up for election in Tennessee, 46 (40%) of which were contested by both major parties. The remaining 69 seats (60%) had no major party competition.

• Democrats ran for 67 seats (58%), 21 of which had no Republican competition, representing 18% of all seats up for election.
• Republicans ran for 94 seats (82%), 48 of which had no Democratic competition, representing 42% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Tennessee, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	99	20	20.2%	42	42.4%	62	62.6%	37	37.4%
Senate	16	1	6.3%	6	37.5%	7	43.8%	9	56.3%
Total	115	21	18.3%	48	41.7%	69	60.0%	46	40.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Tennessee, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	116	17	14.7%	32	27.6%	49	42.2%	67	57.8%
2012	115	16	13.9%	41	35.7%	57	49.6%	58	50.4%
2014	116	17	14.7%	55	47.4%	72	62.1%	44	37.9%
2016	115	18	15.7%	41	35.7%	59	51.3%	56	48.7%
2018	116	20	17.2%	11	9.5%	31	26.7%	85	73.3%
2020	115	21	18.3%	48	41.7%	69	60.0%	46	40.0%

See also:

• Tennessee House of Representatives elections, 2020
• Tennessee State Senate elections, 2020

Texas

There were 166 seats up for election in Texas, 107 (64%) of which were contested by both major parties. The remaining 59 seats (36%) had no major party competition.

• Democrats ran for 139 seats (84%), 32 of which had no Republican competition, representing 19% of all seats up for election.
• Republicans ran for 134 seats (81%), 27 of which had no Democratic competition, representing 16% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Texas, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	150	30	20.0%	26	17.3%	56	37.3%	94	62.7%
Senate	16	2	12.5%	1	6.3%	3	18.8%	13	81.3%
Total	166	32	19.3%	27	16.3%	59	35.5%	107	64.5%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Texas, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	166	38	22.9%	63	38.0%	101	60.8%	65	39.2%
2012	181	38	21.0%	77	42.5%	115	63.5%	66	36.5%
2014	165	46	27.9%	64	38.8%	110	66.7%	55	33.3%
2016	166	44	26.5%	66	39.8%	110	66.3%	56	33.7%
2018	165	38	23.0%	20	12.1%	58	35.2%	107	64.8%
2020	166	32	19.3%	27	16.3%	59	35.5%	107	64.5%

See also:

• Texas House of Representatives elections, 2020
• Texas State Senate elections, 2020

Utah

There were 90 seats up for election in Utah, 59 (66%) of which were contested by both major parties. The remaining 31 seats (34%) had no major party competition.

• Democrats ran for 61 seats (68%), two of which had no Republican competition, representing 2% of all seats up for election.
• Republicans ran for 88 seats (98%), 29 of which had no Democratic competition, representing 32% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Utah, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	75	2	2.7%	21	28.0%	23	30.7%	52	69.3%
Senate	15	0	0.0%	8	53.3%	8	53.3%	7	46.7%
Total	90	2	2.2%	29	32.2%	31	34.4%	59	65.6%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Utah, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	90	1	1.1%	18	20.0%	19	21.1%	71	78.9%
2012	91	1	1.1%	20	22.0%	21	23.1%	70	76.9%
2014	89	4	4.5%	16	18.0%	20	22.5%	69	77.5%
2016	90	6	6.7%	28	31.1%	34	37.8%	56	62.2%
2018	89	2	2.2%	18	20.2%	20	22.5%	69	77.5%
2020	90	2	2.2%	29	32.2%	31	34.4%	59	65.6%

See also:

• Utah House of Representatives elections, 2020
• Utah State Senate elections, 2020

Vermont

There were 180 seats up for election in Vermont, 102 (57%) of which were contested by both major parties. The remaining 78 seats (43%) had no major party competition.

• Democrats ran for 155 seats (86%), 53 of which had no Republican competition, representing 29% of all seats up for election.
• Republicans ran for 125 seats (69%), 23 of which had no Democratic competition, representing 13% of all seats up for election.
• There were two seats uncontested by both major parties, guaranteeing those seats to minor party or independent candidates.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Vermont, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	150	51	34.0%	20	13.3%	73	48.7%	77	51.3%
Senate	30	2	6.7%	3	10.0%	5	16.7%	25	83.3%
Total	180	53	29.4%	23	12.8%	78	43.3%	102	56.7%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Vermont, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	180	54	30.0%	26	14.4%	80	44.4%	100	55.6%
2012	180	84	46.7%	33	18.3%	120	66.7%	60	33.3%
2014	180	81	45.0%	28	15.6%	112	62.2%	68	37.8%
2016	180	65	36.1%	28	15.6%	95	52.8%	85	47.2%
2018	180	81	45.0%	27	15.0%	111	61.7%	69	38.3%
2020	180	53	29.4%	23	12.8%	78	43.3%	102	56.7%

See also:

• Vermont House of Representatives elections, 2020
• Vermont State Senate elections, 2020

Washington

There were 123 seats up for election in Washington, 92 (75%) of which were contested by both major parties. The remaining 31 seats (25%) had no major party competition.

• Democrats ran for 111 seats (90%), 19 of which had no Republican competition, representing 15% of all seats up for election.
• Republicans ran for 104 seats (85%), 12 of which had no Democratic competition, representing 10% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Washington, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	98	17	17.3%	8	8.2%	25	25.5%	73	74.5%
Senate	25	2	8.0%	4	16.0%	6	24.0%	19	76.0%
Total	123	19	15.4%	12	9.8%	31	25.2%	92	74.8%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Washington, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	123	18	14.6%	25	20.3%	43	35.0%	80	65.0%
2012	124	24	19.4%	21	16.9%	45	36.3%	79	63.7%
2014	123	23	18.7%	22	17.9%	45	36.6%	78	63.4%
2016	124	33	26.6%	29	23.4%	62	50.0%	62	50.0%
2018	123	30	24.4%	3	2.4%	33	26.8%	90	73.2%
2020	123	19	15.4%	12	9.8%	31	25.2%	92	74.8%

See also:

• Washington House of Representatives elections, 2020
• Washington State Senate elections, 2020

West Virginia

There were 117 seats up for election in West Virginia, 95 (81%) of which were contested by both major parties. The remaining 22 seats (19%) had no major party competition.

• Democrats ran for 99 seats (85%), four of which had no Republican competition, representing 3% of all seats up for election.
• Republicans ran for 113 seats (97%), 18 of which had no Democratic competition, representing 15% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in West Virginia, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	100	4	4.0%	15	15.0%	19	19.0%	81	81.0%
Senate	17	0	0.0%	3	17.6%	3	17.6%	14	82.4%
Total	117	4	3.4%	18	15.4%	22	18.8%	95	81.2%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in West Virginia, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	117	31	26.5%	10	8.5%	41	35.0%	76	65.0%
2012	117	25	21.4%	15	12.8%	40	34.2%	77	65.8%
2014	117	3	2.6%	16	13.7%	19	16.2%	98	83.8%
2016	117	2	1.7%	7	6.0%	9	7.7%	108	92.3%
2018	117	8	6.8%	7	6.0%	15	12.8%	102	87.2%
2020	117	4	3.4%	18	15.4%	22	18.8%	95	81.2%

See also:

• West Virginia House of Delegates elections, 2020
• West Virginia State Senate elections, 2020

Wisconsin

There were 115 seats up for election in Wisconsin, 90 (78%) of which were contested by both major parties. The remaining 25 seats (22%) had no major party competition.

• Democrats ran for 100 seats (87%), 10 of which had no Republican competition, representing 9% of all seats up for election.
• Republicans ran for 105 seats (91%), 15 of which had no Democratic competition, representing 13% of all seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Wisconsin, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	99	7	7.1%	13	13.1%	20	20.2%	79	79.8%
Senate	16	3	18.8%	2	12.5%	5	31.3%	11	68.8%
Total	115	10	8.7%	15	13.0%	25	21.7%	90	78.3%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Wisconsin, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	116	14	12.1%	19	16.4%	33	28.4%	83	71.6%
2012	115	27	23.5%	6	5.2%	33	28.7%	82	71.3%
2014	116	26	22.4%	30	25.9%	56	48.3%	60	51.7%
2016	115	33	28.7%	24	20.9%	57	49.6%	58	50.4%
2018	116	32	27.6%	10	8.6%	42	36.2%	74	63.8%
2020	115	10	8.7%	15	13.0%	25	21.7%	90	78.3%

See also:

• Wisconsin State Assembly elections, 2020
• Wisconsin State Senate elections, 2020

Wyoming

There were 75 seats up for election in Wyoming, 21 (28%) of which were contested by both major parties. The remaining 54 seats (72%) had no major party competition.

• Democrats ran for 26 seats (35%), five of which had no Republican competition, representing 7% of all seats up for election.
• Republicans ran for 70 seats (93%), 49 of which had no Democratic competition, representing 65% of all seats up for election. This guaranteed Republican control of a majority of seats up for election.

In 2020

Statistics from 2020 are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Wyoming, 2020
Chamber	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
House	60	5	8.3%	39	65.0%	44	73.3%	16	26.7%
Senate	15	0	0.0%	10	66.7%	10	66.7%	5	33.3%
Total	75	5	6.7%	49	65.3%	54	72.0%	21	28.0%

2010-2020

Historical major party competition statistics are shown below. Hover over column headings to learn more about their contents.

Major party competition in state legislative elections in Wyoming, 2010-2020
Year	Seats
		Uncontested						Contested
		Only Democrats		Only Republicans		Total
		#	%	#	%	#	%	#	%
2010	75	7	9.3%	43	57.3%	50	66.7%	25	33.3%
2012	75	4	5.3%	51	68.0%	55	73.3%	20	26.7%
2014	75	5	6.7%	45	60.0%	50	66.7%	25	33.3%
2016	75	6	8.0%	14	18.7%	20	26.7%	55	73.3%
2018	75	5	6.7%	44	58.7%	49	65.3%	26	34.7%
2020	75	5	6.7%	49	65.3%	54	72.0%	21	28.0%

See also:

• Wyoming House of Representatives elections, 2020
• Wyoming State Senate elections, 2020

Terms and definitions

Major party competition

Major party competition exists when candidates from both major parties—Democratic and Republican—appear on the general election ballot for a given seat.

A seat lacks major party competition when at least one major party does not have a candidate on the ballot, effectively guaranteeing the seat to the other major party. This includes cases where no candidates from either major party appear on the ballot, guaranteeing that seat to a minor party or independent candidate.

Seat

State legislative seats represent the total number of candidates who can be elected. These totals may differ from state legislative districts.

In most states, every state legislative district includes a single seat. These are referred to as single-member state legislative districts.

Certain states have multi-member state legislative districts, where a single district contains multiple seats.

Methodology

Counting major party competition

Major party competition is counted by seat.

In a single-member district, major party competition exists when one Democrat and one Republican appear on the general election ballot.

In multi-member districts, major party competition might exist for some seats while not existing for others.

For example, in a district with three seats, if three Democrats and two Republicans appear on the general election ballot, two seats have major party competition, while one does not. This is because the number of Republicans on the ballot is less than the number of seats up for election, meaning, at most, Republicans could win two of the three seats with the remaining seat effectively guaranteed to be won by a Democrat.

Major party competition is counted at the time of the general election. In states with top-two/four primaries, where every candidate appears on the same primary ballot regardless of political affiliation, this means only those candidates who advanced to the general election are counted. For example, if two Republicans and one Democrat ran in a top-two primary, and the two Republicans advanced to the general election, that seat is considered to have no major party competition since only one major party appears on the general election ballot.

Candidacy withdrawals

See also: Signature requirements and deadlines for 2020 state government elections

Candidates may choose to withdraw before the general election takes place. Withdrawals include decisions to leave the race, disqualifications, and deaths. These withdrawals are either official or unofficial.

An official withdrawal means the candidate withdrew before a specific date set in state law and their name was removed from the general election ballot. If a major party candidate officially withdraws before the general election, the number of seats without major party competition increases unless another candidate replaces them.

An unofficial withdrawal means the candidate withdrew after a specific date set in state law, typically after ballots have been printed, meaning their name remains on the ballot even though they are not actively campaigning. If a major party candidate unofficially withdraws before the general election, major party competition figures are unchanged.

Minor party and independent candidates

This analysis does not account for the presence of minor party and independent candidates on the general election ballot when determining major party competition.

For example, if a Republican candidate is on the general election ballot running against an independent candidate, that seat is not considered to have major party competition, since no Democratic candidates are present.

This is why seats contested by only one major party are referred to as guaranteed to the major party with a candidate on the ballot. While minor party and independent candidates can win state legislative elections, it is rare. Heading into the 2020 elections, minor party or independent legislators held 0.4% of the nation's 7,383 state legislative seats.

Major party write-in candidates

Most states allow voters to write in the name of some other candidate when casting a ballot. Write-in candidates affiliated with a major party are not accounted for when determining major party competition unless that write-in candidate wins the general election. In these instances, major party competition figures are updated retroactively.

Calculating the total number of seats contested by a party

While this analysis does not focus on the total number of seats each major party contested, those totals can be calculated using the information above.

• The total number of seats contested by Democrats is equal to the total number of seats with only Democrats on the ballot plus the number of seats contested by both major parties.
• The total number of seats contested by Republicans is equal to the total number of seats with only Republicans on the ballot plus the number of seats contested by both major parties.

See also

• State legislative elections, 2020
  • Impact of term limits on state legislative elections in 2020
  • Open seats in state legislative elections, 2020
  • Contested state legislative primaries, 2020
  • State legislative incumbents in contested primaries, 2020
  • Incumbents defeated in state legislative elections, 2020
• Primary election competitiveness in state and federal government, 2020

Footnotes

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