State legislative incumbents without general election challengers, 2020

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Last updated on June 30, 2025

There were 5,875 state legislative seats up for election on November 3, 2020, in 44 states. Overall, 4,832 incumbents ran in the general election. Of that total, 1,524 incumbents were uncontested, representing 31.5% of all incumbents who ran in the general election. That was lower than the average of 35% between 2010 and 2018.

A general election is uncontested when there are no candidates other than the incumbent running. Learn more about the terms and methodologies used in this analysis.

Ballotpedia uses the number and percentage of incumbents in uncontested general elections to help determine the overall competitiveness of an election cycle. A larger number of uncontested general elections indicates less competitiveness because there are fewer opportunities for voters to elect a non-incumbent to office. A smaller number indicates more of those opportunities.

In 2020:

There were 777 Democratic incumbents in uncontested general elections, representing 33.1% of all Democratic incumbents who ran in the general election, a 13% decrease from 2018.

There were 744 Republican incumbents in uncontested general elections, representing 30.2% of all Republican incumbents who ran in the general election, a 41% increase from 2018.

There were three minor party or independent incumbents in uncontested general elections, representing 13.6% of all minor party or independent incumbents who ran in the general election.

The total number of incumbents in uncontested general elections—1,524—104 more and a 7% increase from 2018.

State legislative incumbents without general election challengers, 2020
Chamber	Seats
		Democratic			Republican			Total
		Filed	Cont.	%	Filed	Cont.	%	Filed	Cont.	%
House	4,710	1,910	640	33.5%	1,979	611	30.9%	3,910	1,254	32.1%
Senate	1,165	435	137	31.5%	486	133	27.4%	922	270	29.3%
Total	5,875	2,345	777	33.1%	2,465	744	30.2%	4,832	1,524	31.5%

Click [show] on the table below to view incumbents without general election challengers statistics by state in 2020. Hover over column headings to learn more about their contents.

State legislative incumbents without general election challengers, 2020
State	Seats
		Democratic			Republican			Total
		Filed	Cont.	%	Filed	Cont.	%	Filed	Cont.	%
Nationwide	5,875	2,345	777	33.1%	2,465	744	30.2%	4,832	1,524	31.5%
Alaska	50	17	6	35.3%	20	5	25.0%	39	12	30.8%
Arizona	90	37	11	29.7%	33	6	18.2%	70	17	24.3%
Arkansas	117	26	15	57.7%	78	47	60.3%	104	62	59.6%
California	100	65	2	3.1%	18	2	11.1%	84	4	4.8%
Colorado	83	41	4	9.8%	22	2	9.1%	63	6	9.5%
Connecticut	187	106	23	21.7%	64	8	12.5%	170	31	18.2%
Delaware	52	26	17	65.4%	20	9	45.0%	46	26	56.5%
Florida	140	36	15	41.7%	60	1	1.7%	96	16	16.7%
Georgia	236	84	59	70.2%	121	49	40.5%	205	108	52.7%
Hawaii	64	49	23	46.9%	5	0	0.0%	54	23	42.6%
Idaho	105	16	3	18.8%	67	34	50.7%	83	37	44.6%
Illinois	138	84	49	58.3%	38	9	23.7%	122	58	47.5%
Indiana	125	35	17	48.6%	80	20	25.0%	115	37	32.2%
Iowa	125	49	20	40.8%	57	16	28.1%	106	36	34.0%
Kansas	165	42	9	21.4%	86	35	40.7%	128	44	34.4%
Kentucky	119	35	18	51.4%	64	19	29.7%	99	37	37.4%
Maine	186	79	18	22.8%	58	8	13.8%	142	26	18.3%
Massachusetts	200	149	125	83.9%	33	16	48.5%	183	141	77.0%
Michigan	110	39	1	2.6%	45	0	0.0%	84	1	1.2%
Minnesota	201	86	3	3.5%	87	1	1.1%	173	4	2.3%
Missouri	180	35	22	62.9%	85	38	44.7%	120	60	50.0%
Montana	125	31	5	16.1%	47	21	44.7%	78	26	33.3%
Nebraska	25	7	1	14.3%	12	3	25.0%	19	4	21.1%
Nevada	52	25	5	20.0%	13	6	46.2%	38	11	28.9%
New Hampshire	424	205	7	3.4%	128	0	0.0%	333	7	2.1%
New Mexico	112	61	8	13.1%	33	17	51.5%	94	25	26.6%
New York	213	126	45	35.7%	46	13	28.3%	174	58	33.3%
North Carolina	170	69	7	10.1%	75	4	5.3%	144	11	7.6%
North Dakota	69	7	0	0.0%	54	13	24.1%	61	13	21.3%
Ohio	115	35	7	20.0%	56	14	25.0%	91	21	23.1%
Oklahoma	125	22	7	31.8%	85	63	74.1%	107	70	65.4%
Oregon	75	34	9	26.5%	26	0	0.0%	60	9	15.0%
Pennsylvania	228	89	34	38.2%	113	32	28.3%	202	66	32.7%
Rhode Island	113	80	49	61.3%	13	6	46.2%	94	55	58.5%
South Carolina	170	59	25	42.4%	95	52	54.7%	154	77	50.0%
South Dakota	105	13	3	23.1%	59	21	35.6%	72	24	33.3%
Tennessee	115	25	19	76.0%	79	35	44.3%	105	54	51.4%
Texas	166	68	24	35.3%	83	21	25.3%	151	45	29.8%
Utah	90	15	2	13.3%	59	16	27.1%	74	18	24.3%
Vermont	180	104	40	38.5%	44	19	43.2%	156	61	39.1%
Washington	123	62	7	11.3%	45	7	15.6%	107	14	13.1%
West Virginia	117	33	2	6.1%	51	11	21.6%	84	13	15.5%
Wisconsin	115	32	8	25.0%	62	14	22.6%	94	22	23.4%
Wyoming	75	7	3	42.9%	46	31	67.4%	54	34	63.0%

Historical comparison

The chart below shows a breakdown of incumbents in contested primaries from 2010 to 2020.

Click [show] on the table below to view overall incumbents in contested primaries statistics by state from 2010 to 2020. Hover over column headings to learn more about their contents.

State legislative incumbents without general election challengers, 2010-2020
State
	2010			2012			2014			2016			2018			2020
	Dem.	Rep.	Total	Dem.	Rep.	Total	Dem.	Rep.	Total	Dem.	Rep.	Total	Dem.	Rep.	Total	Dem.	Rep.	Total
Nationwide	25%	39%	31%	39%	35%	37%	38%	40%	39%	43%	34%	38%	42%	20%	30%	33%	30%	32%
Alaska	45%	39%	42%	19%	33%	27%	56%	7%	27%	50%	26%	36%	14%	25%	19%	35%	25%	31%
Arizona	21%	7%	13%	59%	28%	37%	19%	18%	19%	48%	11%	25%	30%	0%	13%	30%	18%	24%
Arkansas	73%	91%	79%	47%	55%	52%	60%	70%	65%	62%	80%	73%	65%	51%	54%	58%	60%	60%
California	5%	6%	5%	6%	0%	4%	7%	5%	6%	6%	0%	4%	8%	0%	6%	3%	11%	5%
Colorado	3%	27%	13%	0%	5%	2%	8%	43%	22%	15%	10%	12%	30%	0%	15%	10%	9%	10%
Connecticut	18%	27%	20%	22%	22%	22%	21%	24%	22%	18%	29%	23%	17%	6%	12%	22%	13%	18%
Delaware	23%	44%	30%	50%	31%	44%	47%	24%	38%	58%	32%	48%	25%	19%	22%	65%	45%	57%
Florida	45%	42%	43%	48%	40%	42%	52%	52%	52%	76%	38%	47%	73%	11%	34%	42%	2%	17%
Georgia	80%	66%	72%	79%	79%	79%	88%	78%	82%	82%	80%	81%	85%	57%	67%	70%	40%	53%
Hawaii	4%	50%	9%	37%	33%	36%	24%	0%	22%	44%	25%	42%	62%	25%	59%	47%	0%	43%
Idaho	16%	58%	49%	9%	33%	29%	13%	45%	40%	35%	44%	43%	21%	49%	45%	19%	51%	45%
Illinois	53%	24%	42%	63%	59%	61%	60%	70%	63%	68%	58%	64%	65%	36%	53%	58%	24%	48%
Indiana	4%	33%	18%	38%	26%	30%	44%	46%	45%	48%	24%	30%	71%	17%	31%	49%	25%	32%
Iowa	16%	62%	34%	18%	37%	28%	55%	37%	46%	39%	21%	29%	46%	11%	27%	41%	28%	34%
Kansas	30%	50%	42%	17%	34%	28%	38%	41%	40%	61%	25%	35%	58%	45%	50%	21%	41%	34%
Kentucky	30%	60%	41%	46%	68%	55%	46%	58%	52%	29%	61%	44%	29%	12%	17%	51%	30%	37%
Maine	4%	6%	5%	6%	6%	6%	9%	12%	9%	19%	8%	13%	11%	8%	10%	23%	14%	18%
Massachusetts	49%	73%	52%	69%	54%	66%	59%	60%	59%	79%	48%	72%	77%	35%	67%	84%	48%	77%
Michigan	0%	7%	3%	0%	2%	1%	0%	0%	0%	0%	0%	0%	0%	0%	0%	3%	0%	1%
Minnesota	0%	11%	3%	7%	2%	5%	1%	16%	8%	4%	2%	3%	5%	0%	2%	3%	1%	2%
Missouri	34%	53%	43%	61%	44%	49%	48%	54%	52%	56%	49%	50%	45%	16%	24%	63%	45%	50%
Montana	24%	33%	29%	19%	21%	20%	43%	2%	18%	40%	14%	26%	38%	13%	23%	16%	45%	33%
Nebraska	30%	60%	43%	17%	30%	25%	50%	20%	29%	0%	38%	23%	67%	33%	38%	14%	25%	21%
Nevada	0%	0%	0%	22%	45%	29%	15%	29%	21%	14%	29%	21%	38%	23%	32%	20%	46%	29%
New Hampshire	1%	4%	2%	21%	7%	11%	10%	13%	11%	19%	2%	9%	12%	4%	8%	3%	0%	2%
New Mexico	47%	68%	54%	56%	62%	58%	55%	41%	48%	79%	47%	63%	66%	46%	57%	13%	52%	27%
New York	16%	24%	19%	33%	28%	31%	35%	45%	38%	35%	34%	35%	40%	21%	33%	36%	28%	33%
North Carolina	14%	57%	33%	60%	39%	47%	60%	38%	45%	54%	39%	45%	2%	0%	1%	10%	5%	8%
North Dakota	8%	30%	21%	11%	15%	14%	50%	24%	29%	0%	13%	8%	27%	15%	17%	0%	24%	21%
Ohio	4%	18%	10%	26%	8%	14%	13%	21%	19%	29%	27%	28%	25%	0%	8%	20%	25%	23%
Oklahoma	50%	66%	60%	67%	72%	70%	68%	70%	69%	45%	33%	36%	64%	25%	37%	32%	74%	65%
Oregon	5%	8%	6%	10%	21%	16%	26%	33%	29%	20%	25%	22%	31%	13%	24%	26%	0%	15%
Pennsylvania	41%	41%	41%	52%	45%	48%	62%	53%	57%	55%	41%	47%	68%	19%	39%	38%	28%	33%
Rhode Island	19%	38%	20%	46%	27%	43%	63%	33%	60%	52%	31%	49%	58%	25%	54%	61%	46%	59%
South Carolina	69%	64%	66%	75%	76%	76%	68%	77%	74%	77%	78%	78%	62%	51%	55%	42%	55%	50%
South Dakota	24%	25%	25%	46%	26%	30%	44%	40%	41%	50%	22%	27%	44%	0%	5%	23%	36%	33%
Tennessee	31%	55%	42%	48%	47%	47%	48%	64%	59%	52%	38%	42%	79%	17%	31%	76%	44%	51%
Texas	37%	39%	38%	40%	45%	43%	55%	0%	22%	64%	49%	54%	71%	22%	40%	35%	25%	30%
Utah	4%	23%	16%	0%	20%	16%	31%	21%	23%	38%	33%	34%	7%	13%	12%	13%	27%	24%
Vermont	25%	43%	30%	48%	38%	45%	39%	43%	40%	35%	33%	34%	45%	25%	38%	38%	43%	39%
Washington	11%	42%	23%	21%	39%	29%	16%	21%	18%	27%	22%	25%	22%	4%	14%	11%	16%	13%
West Virginia	26%	20%	24%	20%	31%	24%	2%	23%	11%	3%	7%	6%	8%	5%	6%	6%	22%	15%
Wisconsin	16%	33%	23%	47%	10%	24%	53%	45%	48%	67%	30%	44%	69%	11%	32%	25%	23%	23%
Wyoming	33%	83%	68%	33%	77%	70%	56%	71%	68%	44%	20%	25%	56%	66%	65%	43%	67%	63%

Alaska

There were 50 seats up for election in Alaska. A total of 39 incumbents advanced to the general election: 17 Democrats, 20 Republicans, and two independent or minor party incumbents. Of that total, 12 incumbents—six Democrats, five Republicans, and one independent or minor party incumbent—had no general election challengers, representing 30.8% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Alaska, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	40	14	5	35.7%	15	4	26.7%	31	10	32.3%
Senate	10	3	1	33.3%	5	1	20.0%	8	2	25.0%
Total	50	17	6	35.3%	20	5	25.0%	39	12	30.8%

2010-2020

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

State legislative incumbents in contested primaries in Alaska, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	50	22	10	45.5%	23	9	39.1%	45	19	42.2%
2012	59	21	4	19.0%	30	10	33.3%	52	14	26.9%
2014	54	18	10	55.6%	27	2	7.4%	45	12	26.7%
2016	50	16	8	50.0%	19	5	26.3%	36	13	36.1%
2018	50	14	2	14.3%	20	5	25.0%	36	7	19.4%
2020	50	17	6	35.3%	20	5	25.0%	39	12	30.8%

See also:

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

Arizona

There were 90 seats up for election in Arizona. A total of 70 incumbents advanced to the general election: 37 Democrats and 33 Republicans. Of that total, 17 incumbents—11 Democrats and six Republicans—had no general election challengers, representing 24.3% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Arizona, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	60	26	6	23.1%	21	3	14.3%	47	9	19.1%
Senate	30	11	5	45.5%	12	3	25.0%	23	8	34.8%
Total	90	37	11	29.7%	33	6	18.2%	70	17	24.3%

2010-2020

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

State legislative incumbents in contested primaries in Arizona, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	90	19	4	21.1%	28	2	7.1%	47	6	12.8%
2012	90	17	10	58.8%	40	11	27.5%	57	21	36.8%
2014	90	26	5	19.2%	38	7	18.4%	64	12	18.8%
2016	90	23	11	47.8%	37	4	10.8%	60	15	25.0%
2018	90	23	7	30.4%	31	0	0.0%	54	7	13.0%
2020	90	37	11	29.7%	33	6	18.2%	70	17	24.3%

See also:

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

Arkansas

There were 117 seats up for election in Arkansas. A total of 104 incumbents advanced to the general election: 26 Democrats and 78 Republicans. Of that total, 62 incumbents—15 Democrats and 47 Republicans—had no general election challengers, representing 59.6% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Arkansas, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	100	23	14	60.9%	66	40	60.6%	89	54	60.7%
Senate	17	3	1	33.3%	12	7	58.3%	15	8	53.3%
Total	117	26	15	57.7%	78	47	60.3%	104	62	59.6%

2010-2020

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

State legislative incumbents in contested primaries in Arkansas, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	117	41	30	73.2%	22	20	90.9%	63	50	79.4%
2012	135	38	18	47.4%	47	26	55.3%	85	44	51.8%
2014	118	43	26	60.5%	40	28	70.0%	83	54	65.1%
2016	117	34	21	61.8%	64	51	79.7%	98	72	73.5%
2018	118	20	13	65.0%	70	36	51.4%	91	49	53.8%
2020	117	26	15	57.7%	78	47	60.3%	104	62	59.6%

See also:

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

California

There were 100 seats up for election in California. A total of 84 incumbents advanced to the general election: 65 Democrats, 18 Republicans, and one independent or minor party officeholder. Of that total, four incumbents—two Democrats and two Republicans—had no general election challengers, representing 4.8% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in California, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	80	55	2	3.6%	14	2	14.3%	70	4	5.7%
Senate	20	10	0	0.0%	4	0	0.0%	14	0	0.0%
Total	100	65	2	3.1%	18	2	11.1%	84	4	4.8%

2010-2020

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

State legislative incumbents in contested primaries in California, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	100	44	2	4.5%	18	1	5.6%	62	3	4.8%
2012	100	36	2	5.6%	20	0	0.0%	56	2	3.6%
2014	100	45	3	6.7%	22	1	4.5%	67	4	6.0%
2016	100	51	3	5.9%	23	0	0.0%	74	3	4.1%
2018	100	61	5	8.2%	27	0	0.0%	88	5	5.7%
2020	100	65	2	3.1%	18	2	11.1%	84	4	4.8%

See also:

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

Colorado

There were 83 seats up for election in Colorado. A total of 63 incumbents advanced to the general election: 41 Democrats and 22 Republicans. Of that total, six incumbents—four Democrats and two Republicans—had no general election challengers, representing 9.5% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Colorado, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	65	34	4	11.8%	18	2	11.1%	52	6	11.5%
Senate	18	7	0	0.0%	4	0	0.0%	11	0	0.0%
Total	83	41	4	9.8%	22	2	9.1%	63	6	9.5%

2010-2020

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

State legislative incumbents in contested primaries in Colorado, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	84	37	1	2.7%	26	7	26.9%	64	8	12.5%
2012	85	29	0	0.0%	22	1	4.5%	51	1	2.0%
2014	82	36	3	8.3%	23	10	43.5%	59	13	22.0%
2016	83	26	4	15.4%	31	3	9.7%	57	7	12.3%
2018	82	27	8	29.6%	26	0	0.0%	53	8	15.1%
2020	83	41	4	9.8%	22	2	9.1%	63	6	9.5%

See also:

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

Connecticut

There were 187 seats up for election in Connecticut. A total of 170 incumbents advanced to the general election: 106 Democrats and 64 Republicans. Of that total, 31 incumbents—23 Democrats and eight Republicans—had no general election challengers, representing 18.2% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Connecticut, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	151	84	20	23.8%	51	7	13.7%	135	27	20.0%
Senate	36	22	3	13.6%	13	1	7.7%	35	4	11.4%
Total	187	106	23	21.7%	64	8	12.5%	170	31	18.2%

2010-2020

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

State legislative incumbents in contested primaries in Connecticut, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	187	123	22	17.9%	44	12	27.3%	167	34	20.4%
2012	187	100	22	22.0%	59	13	22.0%	159	35	22.0%
2014	187	103	22	21.4%	58	14	24.1%	161	36	22.4%
2016	187	94	17	18.1%	68	20	29.4%	162	37	22.8%
2018	187	82	14	17.1%	79	5	6.3%	161	19	11.8%
2020	187	106	23	21.7%	64	8	12.5%	170	31	18.2%

See also:

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

Delaware

There were 52 seats up for election in Delaware. A total of 46 incumbents advanced to the general election: 26 Democrats and 20 Republicans. Of that total, 26 incumbents—17 Democrats and nine Republicans—had no general election challengers, representing 56.5% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Delaware, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	41	22	15	68.2%	15	7	46.7%	37	22	59.5%
Senate	11	4	2	50.0%	5	2	40.0%	9	4	44.4%
Total	52	26	17	65.4%	20	9	45.0%	46	26	56.5%

2010-2020

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

State legislative incumbents in contested primaries in Delaware, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	52	31	7	22.6%	16	7	43.8%	47	14	29.8%
2012	62	34	17	50.0%	16	5	31.3%	50	22	44.0%
2014	51	30	14	46.7%	17	4	23.5%	47	18	38.3%
2016	52	31	18	58.1%	19	6	31.6%	50	24	48.0%
2018	51	20	5	25.0%	16	3	18.8%	36	8	22.2%
2020	52	26	17	65.4%	20	9	45.0%	46	26	56.5%

See also:

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

Florida

There were 140 seats up for election in Florida. A total of 96 incumbents advanced to the general election: 36 Democrats and 60 Republicans. Of that total, 16 incumbents—15 Democrats and one Republicans—had no general election challengers, representing 16.7% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Florida, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	120	29	14	48.3%	55	1	1.8%	84	15	17.9%
Senate	20	7	1	14.3%	5	0	0.0%	12	1	8.3%
Total	140	36	15	41.7%	60	1	1.7%	96	16	16.7%

2010-2020

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

State legislative incumbents in contested primaries in Florida, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	143	40	18	45.0%	55	23	41.8%	95	41	43.2%
2012	160	29	14	48.3%	77	31	40.3%	106	45	42.5%
2014	140	42	22	52.4%	79	41	51.9%	121	63	52.1%
2016	160	25	19	76.0%	72	27	37.5%	97	46	47.4%
2018	140	37	27	73.0%	62	7	11.3%	99	34	34.3%
2020	140	36	15	41.7%	60	1	1.7%	96	16	16.7%

See also:

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

Georgia

There were 236 seats up for election in Georgia. A total of 205 incumbents advanced to the general election: 84 Democrats and 121 Republicans. Of that total, 108 incumbents—59 Democrats and 49 Republicans—had no general election challengers, representing 52.7% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Georgia, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	180	66	46	69.7%	92	36	39.1%	158	82	51.9%
Senate	56	18	13	72.2%	29	13	44.8%	47	26	55.3%
Total	236	84	59	70.2%	121	49	40.5%	205	108	52.7%

2010-2020

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

State legislative incumbents in contested primaries in Georgia, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	236	84	67	79.8%	108	71	65.7%	193	138	71.5%
2012	236	67	53	79.1%	128	101	78.9%	196	154	78.6%
2014	236	72	63	87.5%	139	109	78.4%	212	173	81.6%
2016	236	68	56	82.4%	141	113	80.1%	209	169	80.9%
2018	236	78	66	84.6%	129	73	56.6%	207	139	67.1%
2020	236	84	59	70.2%	121	49	40.5%	205	108	52.7%

See also:

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

Hawaii

There were 64 seats up for election in Hawaii. A total of 54 incumbents advanced to the general election: 49 Democrats and five Republicans. Of that total, 23 incumbents—23 Democrats and no Republicans—had no general election challengers, representing 42.6% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Hawaii, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	51	39	17	43.6%	4	0	0.0%	43	17	39.5%
Senate	13	10	6	60.0%	1	0	0.0%	11	6	54.5%
Total	64	49	23	46.9%	5	0	0.0%	54	23	42.6%

2010-2020

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

State legislative incumbents in contested primaries in Hawaii, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	66	51	2	3.9%	6	3	50.0%	57	5	8.8%
2012	76	60	22	36.7%	6	2	33.3%	66	24	36.4%
2014	63	49	12	24.5%	6	0	0.0%	55	12	21.8%
2016	64	52	23	44.2%	8	2	25.0%	60	25	41.7%
2018	63	47	29	61.7%	4	1	25.0%	51	30	58.8%
2020	64	49	23	46.9%	5	0	0.0%	54	23	42.6%

See also:

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

Idaho

There were 105 seats up for election in Idaho. A total of 83 incumbents advanced to the general election: 16 Democrats and 67 Republicans. Of that total, 37 incumbents—three Democrats and 34 Republicans—had no general election challengers, representing 44.6% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Idaho, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	70	11	2	18.2%	43	22	51.2%	54	24	44.4%
Senate	35	5	1	20.0%	24	12	50.0%	29	13	44.8%
Total	105	16	3	18.8%	67	34	50.7%	83	37	44.6%

2010-2020

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

State legislative incumbents in contested primaries in Idaho, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	105	19	3	15.8%	71	41	57.7%	90	44	48.9%
2012	105	11	1	9.1%	55	18	32.7%	66	19	28.8%
2014	105	15	2	13.3%	73	33	45.2%	88	35	39.8%
2016	105	17	6	35.3%	72	32	44.4%	89	38	42.7%
2018	105	14	3	21.4%	69	34	49.3%	83	37	44.6%
2020	105	16	3	18.8%	67	34	50.7%	83	37	44.6%

See also:

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

Illinois

There were 138 seats up for election in Illinois. A total of 122 incumbents advanced to the general election: 84 Democrats and 38 Republicans. Of that total, 58 incumbents—49 Democrats and nine Republicans—had no general election challengers, representing 47.5% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Illinois, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	118	70	41	58.6%	38	9	23.7%	108	50	46.3%
Senate	20	14	8	57.1%	0	0	0	14	8	57.1%
Total	138	84	49	58.3%	38	9	23.7%	122	58	47.5%

2010-2020

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

State legislative incumbents in contested primaries in Illinois, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	139	75	40	53.3%	50	12	24.0%	125	52	41.6%
2012	177	81	51	63.0%	58	34	58.6%	139	85	61.2%
2014	137	80	48	60.0%	43	30	69.8%	123	78	63.4%
2016	158	90	61	67.8%	53	31	58.5%	143	92	64.3%
2018	157	75	49	65.3%	55	20	36.4%	130	69	53.1%
2020	138	84	49	58.3%	38	9	23.7%	122	58	47.5%

See also:

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

Indiana

There were 125 seats up for election in Indiana. A total of 115 incumbents advanced to the general election: 35 Democrats and 80 Republicans. Of that total, 37 incumbents—17 Democrats and 20 Republicans—had no general election challengers, representing 32.2% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Indiana, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	100	30	12	40.0%	62	17	27.4%	92	29	31.5%
Senate	25	5	5	100.0%	18	3	16.7%	23	8	34.8%
Total	125	35	17	48.6%	80	20	25.0%	115	37	32.2%

2010-2020

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

State legislative incumbents in contested primaries in Indiana, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	125	56	2	3.6%	55	18	32.7%	111	20	18.0%
2012	125	34	13	38.2%	68	18	26.5%	102	31	30.4%
2014	125	36	16	44.4%	79	36	45.6%	115	52	45.2%
2016	125	29	14	48.3%	76	18	23.7%	105	32	30.5%
2018	125	28	20	71.4%	81	14	17.3%	109	34	31.2%
2020	125	35	17	48.6%	80	20	25.0%	115	37	32.2%

See also:

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

Iowa

There were 125 seats up for election in Iowa. A total of 106 incumbents advanced to the general election: 49 Democrats and 57 Republicans. Of that total, 36 incumbents—20 Democrats and 16 Republicans—had no general election challengers, representing 34.0% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Iowa, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	100	43	18	41.9%	45	12	26.7%	88	30	34.1%
Senate	25	6	2	33.3%	12	4	33.3%	18	6	33.3%
Total	125	49	20	40.8%	57	16	28.1%	106	36	34.0%

2010-2020

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

State legislative incumbents in contested primaries in Iowa, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	125	63	10	15.9%	42	26	61.9%	105	36	34.3%
2012	126	45	8	17.8%	51	19	37.3%	96	27	28.1%
2014	125	55	30	54.5%	54	20	37.0%	109	50	45.9%
2016	125	49	19	38.8%	61	13	21.3%	110	32	29.1%
2018	125	46	21	45.7%	55	6	10.9%	101	27	26.7%
2020	125	49	20	40.8%	57	16	28.1%	106	36	34.0%

See also:

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

Kansas

There were 165 seats up for election in Kansas. A total of 128 incumbents advanced to the general election: 42 Democrats and 86 Republicans. Of that total, 44 incumbents—nine Democrats and 35 Republicans—had no general election challengers, representing 34.4% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Kansas, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	125	33	8	24.2%	67	29	43.3%	100	37	37.0%
Senate	40	9	1	11.1%	19	6	31.6%	28	7	25.0%
Total	165	42	9	21.4%	86	35	40.7%	128	44	34.4%

2010-2020

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

State legislative incumbents in contested primaries in Kansas, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	125	44	13	29.5%	66	33	50.0%	110	46	41.8%
2012	165	36	6	16.7%	71	24	33.8%	107	30	28.0%
2014	125	29	11	37.9%	80	33	41.3%	109	44	40.4%
2016	165	33	20	60.6%	84	21	25.0%	117	41	35.0%
2018	125	40	23	57.5%	65	29	44.6%	105	52	49.5%
2020	165	42	9	21.4%	86	35	40.7%	128	44	34.4%

See also:

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

Kentucky

There were 119 seats up for election in Kentucky. A total of 99 incumbents advanced to the general election: 35 Democrats and 64 Republicans. Of that total, 37 incumbents—18 Democrats and 19 Republicans—had no general election challengers, representing 37.4% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Kentucky, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	100	30	14	46.7%	54	17	31.5%	84	31	36.9%
Senate	19	5	4	80.0%	10	2	20.0%	15	6	40.0%
Total	119	35	18	51.4%	64	19	29.7%	99	37	37.4%

2010-2020

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

State legislative incumbents in contested primaries in Kentucky, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	119	67	20	29.9%	42	25	59.5%	110	45	40.9%
2012	119	63	29	46.0%	41	28	68.3%	104	57	54.8%
2014	119	54	25	46.3%	52	30	57.7%	106	55	51.9%
2016	119	56	16	28.6%	51	31	60.8%	107	47	43.9%
2018	119	28	8	28.6%	66	8	12.1%	94	16	17.0%
2020	119	35	18	51.4%	64	19	29.7%	99	37	37.4%

See also:

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

Maine

There were 186 seats up for election in Maine. A total of 142 incumbents advanced to the general election: 79 Democrats, 58 Republicans, and five independent or minor party incumbents. Of that total, 26 incumbents—18 Democrats and eight Republicans—had no general election challengers, representing 18.3% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Maine, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	151	64	16	25.0%	46	8	17.4%	115	24	20.9%
Senate	35	15	2	13.3%	12	0	0.0%	27	2	7.4%
Total	186	79	18	22.8%	58	8	13.8%	142	26	18.3%

2010-2020

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

State legislative incumbents in contested primaries in Maine, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	186	90	4	4.4%	49	3	6.1%	139	7	5.0%
2012	186	53	3	5.7%	66	4	6.1%	121	7	5.8%
2014	186	81	7	8.6%	42	5	11.9%	127	12	9.4%
2016	186	69	13	18.8%	78	6	7.7%	147	19	12.9%
2018	186	73	8	11.0%	50	4	8.0%	126	12	9.5%
2020	186	79	18	22.8%	58	8	13.8%	142	26	18.3%

See also:

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

Massachusetts

There were 200 seats up for election in Massachusetts. A total of 183 incumbents advanced to the general election: 149 Democrats, 33 Republicans, and one independent or minor party incumbent. Of that total, 141 incumbents—125 Democrats and 16 Republicans—had no general election challengers, representing 77.0% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Massachusetts, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	160	114	95	83.3%	29	15	51.7%	144	110	76.4%
Senate	40	35	30	85.7%	4	1	25.0%	39	31	79.5%
Total	200	149	125	83.9%	33	16	48.5%	183	141	77.0%

2010-2020

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

State legislative incumbents in contested primaries in Massachusetts, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	200	150	74	49.3%	15	11	73.3%	165	85	51.5%
2012	200	149	103	69.1%	35	19	54.3%	184	122	66.3%
2014	200	148	87	58.8%	30	18	60.0%	178	105	59.0%
2016	200	145	115	79.3%	40	19	47.5%	185	134	72.4%
2018	200	134	103	76.9%	37	13	35.1%	173	116	67.1%
2020	200	149	125	83.9%	33	16	48.5%	183	141	77.0%

See also:

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

Michigan

There were 110 seats up for election in Michigan. A total of 84 incumbents advanced to the general election: 39 Democrats and 45 Republicans. Of that total, one incumbent—one Democrat and no Republicans—had no general election challengers, representing 1.2% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Michigan, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	110	39	1	2.6%	45	0	0.0%	84	1	1.2%
Senate	Did not hold elections
Total	110	39	1	2.6%	45	0	0.0%	84	1	1.2%

2010-2020

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

State legislative incumbents in contested primaries in Michigan, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	148	40	0	0.0%	28	2	7.1%	68	2	2.9%
2012	110	32	0	0.0%	55	1	1.8%	87	1	1.1%
2014	148	40	0	0.0%	56	0	0.0%	96	0	0.0%
2016	110	32	0	0.0%	36	0	0.0%	68	0	0.0%
2018	148	30	0	0.0%	45	0	0.0%	75	0	0.0%
2020	110	39	1	2.6%	45	0	0.0%	84	1	1.2%

See also:

• Michigan House of Representatives elections, 2020

Minnesota

There were 201 seats up for election in Minnesota. A total of 173 incumbents advanced to the general election: 86 Democrats and 87 Republicans. Of that total, four incumbents—three Democrats and one Republican—had no general election challengers, representing 2.3% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Minnesota, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	134	58	3	5.2%	54	1	1.9%	112	4	3.6%
Senate	67	28	0	0.0%	33	0	0.0%	61	0	0.0%
Total	201	86	3	3.5%	87	1	1.1%	173	4	2.3%

2010-2020

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

State legislative incumbents in contested primaries in Minnesota, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	201	120	0	0.0%	55	6	10.9%	175	6	3.4%
2012	201	71	5	7.0%	81	2	2.5%	152	7	4.6%
2014	134	68	1	1.5%	51	8	15.7%	119	9	7.6%
2016	201	80	3	3.8%	89	2	2.2%	169	5	3.0%
2018	134	41	2	4.9%	69	0	0.0%	110	2	1.8%
2020	201	86	3	3.5%	87	1	1.1%	173	4	2.3%

See also:

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

Missouri

There were 180 seats up for election in Missouri. A total of 120 incumbents advanced to the general election: 35 Democrats and 85 Republicans. Of that total, 60 incumbents—22 Democrats and 38 Republicans—had no general election challengers, representing 50.0% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Missouri, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	163	33	21	63.6%	81	38	46.9%	114	59	51.8%
Senate	17	2	1	50.0%	4	0	0.0%	6	1	16.7%
Total	180	35	22	62.9%	85	38	44.7%	120	60	50.0%

2010-2020

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

State legislative incumbents in contested primaries in Missouri, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	180	53	18	34.0%	49	26	53.1%	102	44	43.1%
2012	180	36	22	61.1%	82	36	43.9%	118	58	49.2%
2014	180	48	23	47.9%	100	54	54.0%	148	77	52.0%
2016	180	32	18	56.3%	104	51	49.0%	137	69	50.4%
2018	180	33	15	45.5%	82	13	15.9%	115	28	24.3%
2020	180	35	22	62.9%	85	38	44.7%	120	60	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. A total of 78 incumbents advanced to the general election: 31 Democrats and 47 Republicans. Of that total, 26 incumbents—five Democrats and 21 Republicans—had no general election challengers, representing 33.3% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Montana, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	100	28	5	17.9%	38	18	47.4%	66	23	34.8%
Senate	25	3	0	0.0%	9	3	33.3%	12	3	25.0%
Total	125	31	5	16.1%	47	21	44.7%	78	26	33.3%

2010-2020

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

State legislative incumbents in contested primaries in Montana, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	126	33	8	24.2%	40	13	32.5%	73	21	28.8%
2012	126	26	5	19.2%	53	11	20.8%	79	16	20.3%
2014	125	30	13	43.3%	46	1	2.2%	76	14	18.4%
2016	125	35	14	40.0%	42	6	14.3%	77	20	26.0%
2018	125	34	13	38.2%	53	7	13.2%	87	20	23.0%
2020	125	31	5	16.1%	47	21	44.7%	78	26	33.3%

See also:

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

Nebraska

There were 25 seats up for election in Nebraska. A total of 19 incumbents advanced to the general election: seven Democrats and 12 Republicans. Of that total, four incumbents—one Democrat and three Republicans—had no general election challengers, representing 21.1% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Nebraska, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	N/A
Senate	25	7	1	14.3%	12	3	25.0%	19	4	21.1%
Total	25	7	1	14.3%	12	3	25.0%	19	4	21.1%

2010-2020

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

State legislative incumbents in contested primaries in Nebraska, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	24	10	3	30.0%	10	6	60.0%	21	9	42.9%
2012	25	6	1	16.7%	10	3	30.0%	16	4	25.0%
2014	24	2	1	50.0%	5	1	20.0%	7	2	28.6%
2016	25	4	0	0.0%	8	3	37.5%	13	3	23.1%
2018	24	3	2	66.7%	12	4	33.3%	16	6	37.5%
2020	25	7	1	14.3%	12	3	25.0%	19	4	21.1%

See also:

• Nebraska State Senate elections, 2020

Nevada

There were 52 seats up for election in Nevada. A total of 38 incumbents advanced to the general election: 25 Democrats and 13 Republicans. Of that total, 11 incumbents—five Democrats and six Republicans—had no general election challengers, representing 28.9% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Nevada, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	42	21	3	14.3%	10	6	60.0%	31	9	29.0%
Senate	10	4	2	50.0%	3	0	0.0%	7	2	28.6%
Total	52	25	5	20.0%	13	6	46.2%	38	11	28.9%

2010-2020

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

State legislative incumbents in contested primaries in Nevada, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	53	17	0	0.0%	8	0	0.0%	25	0	0.0%
2012	52	23	5	21.7%	11	5	45.5%	34	10	29.4%
2014	53	26	4	15.4%	17	5	29.4%	43	9	20.9%
2016	52	21	3	14.3%	17	5	29.4%	39	8	20.5%
2018	53	24	9	37.5%	13	3	23.1%	37	12	32.4%
2020	52	25	5	20.0%	13	6	46.2%	38	11	28.9%

See also:

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

New Hampshire

There were 424 seats up for election in New Hampshire. A total of 333 incumbents advanced to the general election: 205 Democrats and 128 Republicans. Of that total, seven incumbents—seven Democrats and zero Republicans—had no general election challengers, representing 2.1% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in New Hampshire, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	400	194	7	3.6%	119	0	0.0%	313	7	2.2%
Senate	24	11	0	0.0%	9	0	0.0%	20	0	0.0%
Total	424	205	7	3.4%	128	0	0.0%	333	7	2.1%

2010-2020

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

State legislative incumbents in contested primaries in New Hampshire, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	424	174	1	0.6%	137	6	4.4%	311	7	2.3%
2012	424	82	17	20.7%	211	14	6.6%	293	31	10.6%
2014	424	169	17	10.1%	135	17	12.6%	304	34	11.2%
2016	424	128	24	18.8%	169	3	1.8%	297	27	9.1%
2018	424	141	17	12.1%	159	6	3.8%	303	23	7.6%
2020	424	205	7	3.4%	128	0	0.0%	333	7	2.1%

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. A total of 94 incumbents advanced to the general election: 61 Democrats and 33 Republicans. Of that total, 25 incumbents—eight Democrats and 17 Republicans—had no general election challengers, representing 26.6% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in New Mexico, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	70	41	7	17.1%	20	10	50.0%	61	17	27.9%
Senate	42	20	1	5.0%	13	7	53.8%	33	8	24.2%
Total	112	61	8	13.1%	33	17	51.5%	94	25	26.6%

2010-2020

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

State legislative incumbents in contested primaries in New Mexico, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	70	43	20	46.5%	22	15	68.2%	65	35	53.8%
2012	112	45	25	55.6%	39	24	61.5%	85	49	57.6%
2014	70	31	17	54.8%	27	11	40.7%	58	28	48.3%
2016	112	52	41	78.8%	51	24	47.1%	103	65	63.1%
2018	70	32	21	65.6%	26	12	46.2%	58	33	56.9%
2020	112	61	8	13.1%	33	17	51.5%	94	25	26.6%

See also:

• New Mexico House of Representatives elections, 2020

New York

There were 213 seats up for election in New York. A total of 174 incumbents advanced to the general election: 126 Democrats, 46 Republicans, and two independent or minor party incumbents. Of that total, 58 incumbents—45 Democrats and 13 Republicans—had no general election challengers, representing 33.3% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in New York, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	150	88	34	38.6%	33	9	27.3%	123	43	35.0%
Senate	63	38	11	28.9%	13	4	30.8%	51	15	29.4%
Total	213	126	45	35.7%	46	13	28.3%	174	58	33.3%

2010-2020

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

State legislative incumbents in contested primaries in New York, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	212	124	20	16.1%	59	14	23.7%	183	34	18.6%
2012	213	116	38	32.8%	71	20	28.2%	187	58	31.0%
2014	213	125	44	35.2%	65	29	44.6%	190	73	38.4%
2016	213	126	44	34.9%	64	22	34.4%	190	66	34.7%
2018	213	121	48	39.7%	63	13	20.6%	185	61	33.0%
2020	213	126	45	35.7%	46	13	28.3%	174	58	33.3%

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. A total of 144 incumbents advanced to the general election: 69 Democrats and 75 Republicans. Of that total, 11 incumbents—seven Democrats and four Republicans—had no general election challengers, representing 7.6% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in North Carolina, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	120	51	7	13.7%	54	4	7.4%	105	11	10.5%
Senate	50	18	0	0.0%	21	0	0.0%	39	0	0.0%
Total	170	69	7	10.1%	75	4	5.3%	144	11	7.6%

2010-2020

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

State legislative incumbents in contested primaries in North Carolina, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	170	83	12	14.5%	63	36	57.1%	146	48	32.9%
2012	170	47	28	59.6%	70	27	38.6%	117	55	47.0%
2014	170	52	31	59.6%	102	39	38.2%	154	70	45.5%
2016	170	57	31	54.4%	95	37	38.9%	152	68	44.7%
2018	170	54	1	1.9%	92	0	0.0%	146	1	0.7%
2020	170	69	7	10.1%	75	4	5.3%	144	11	7.6%

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. A total of 61 incumbents advanced to the general election: seven Democrats and 54 Republicans. Of that total, 13 incumbents—no Democrats and 13 Republicans—had no general election challengers, representing 21.3% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in North Dakota, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	46	3	0	0.0%	37	6	16.2%	40	6	15.0%
Senate	23	4	0	0.0%	17	7	41.2%	21	7	33.3%
Total	69	7	0	0.0%	54	13	24.1%	61	13	21.3%

2010-2020

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

State legislative incumbents in contested primaries in North Dakota, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	72	24	2	8.3%	33	10	30.3%	57	12	21.1%
2012	75	18	2	11.1%	39	6	15.4%	57	8	14.0%
2014	72	10	5	50.0%	49	12	24.5%	59	17	28.8%
2016	69	21	0	0.0%	31	4	12.9%	52	4	7.7%
2018	72	11	3	27.3%	48	7	14.6%	59	10	16.9%
2020	69	7	0	0.0%	54	13	24.1%	61	13	21.3%

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. A total of 91 incumbents advanced to the general election: 35 Democrats and 56 Republicans. Of that total, 21 incumbents—seven Democrats and 14 Republicans—had no general election challengers, representing 23.1% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Ohio, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	99	33	7	21.2%	47	14	29.8%	80	21	26.3%
Senate	16	2	0	0.0%	9	0	0.0%	11	0	0.0%
Total	115	35	7	20.0%	56	14	25.0%	91	21	23.1%

2010-2020

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

State legislative incumbents in contested primaries in Ohio, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	116	46	2	4.3%	40	7	17.5%	86	9	10.5%
2012	117	35	9	25.7%	65	5	7.7%	100	14	14.0%
2014	116	30	4	13.3%	56	12	21.4%	86	16	18.6%
2016	115	28	8	28.6%	59	16	27.1%	87	24	27.6%
2018	116	24	6	25.0%	50	0	0.0%	74	6	8.1%
2020	115	35	7	20.0%	56	14	25.0%	91	21	23.1%

See also:

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

Oklahoma

There were 125 seats up for election in Oklahoma. A total of 107 incumbents advanced to the general election: 22 Democrats and 85 Republicans. Of that total, 70 incumbents—seven Democrats and 63 Republicans—had no general election challengers, representing 65.4% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Oklahoma, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	101	20	6	30.0%	69	53	76.8%	89	59	66.3%
Senate	24	2	1	50.0%	16	10	62.5%	18	11	61.1%
Total	125	22	7	31.8%	85	63	74.1%	107	70	65.4%

2010-2020

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

State legislative incumbents in contested primaries in Oklahoma, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	125	40	20	50.0%	62	41	66.1%	102	61	59.8%
2012	125	30	20	66.7%	71	51	71.8%	101	71	70.3%
2014	125	25	17	68.0%	70	49	70.0%	95	66	69.5%
2016	125	20	9	45.0%	61	20	32.8%	81	29	35.8%
2018	125	22	14	63.6%	48	12	25.0%	70	26	37.1%
2020	125	22	7	31.8%	85	63	74.1%	107	70	65.4%

See also:

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

Oregon

There were 75 seats up for election in Oregon. A total of 60 incumbents advanced to the general election: 34 Democrats and 26 Republicans. Of that total, nine incumbents—nine Democrats and no Republicans—had no general election challengers, representing 15.0% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Oregon, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	60	30	5	16.7%	19	0	0.0%	49	5	10.2%
Senate	15	4	4	100.0%	7	0	0.0%	11	4	36.4%
Total	75	34	9	26.5%	26	0	0.0%	60	9	15.0%

2010-2020

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

State legislative incumbents in contested primaries in Oregon, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	76	43	2	4.7%	25	2	8.0%	68	4	5.9%
2012	76	30	3	10.0%	34	7	20.6%	64	10	15.6%
2014	75	38	10	26.3%	21	7	33.3%	59	17	28.8%
2016	75	30	6	20.0%	28	7	25.0%	58	13	22.4%
2018	75	42	13	31.0%	24	3	12.5%	66	16	24.2%
2020	75	34	9	26.5%	26	0	0.0%	60	9	15.0%

See also:

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

Pennsylvania

There were 228 seats up for election in Pennsylvania. A total of 202 incumbents advanced to the general election: 89 Democrats and 113 Republicans. Of that total, 66 incumbents—34 Democrats and 32 Republicans—had no general election challengers, representing 32.7% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Pennsylvania, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	203	82	30	36.6%	99	31	31.3%	181	61	33.7%
Senate	25	7	4	57.1%	14	1	7.1%	21	5	23.8%
Total	228	89	34	38.2%	113	32	28.3%	202	66	32.7%

2010-2020

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

State legislative incumbents in contested primaries in Pennsylvania, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	228	101	41	40.6%	106	43	40.6%	207	84	40.6%
2012	228	83	43	51.8%	113	51	45.1%	196	94	48.0%
2014	228	90	56	62.2%	108	57	52.8%	198	113	57.1%
2016	228	83	46	55.4%	122	50	41.0%	205	96	46.8%
2018	228	78	53	67.9%	111	21	18.9%	189	74	39.2%
2020	228	89	34	38.2%	113	32	28.3%	202	66	32.7%

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. A total of 94 incumbents advanced to the general election: 80 Democrats, 13 Republicans, and one independent or minor party incumbents. Of that total, 55 incumbents—49 Democrats and six Republicans—had no general election challengers, representing 58.5% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Rhode Island, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	75	55	34	61.8%	8	4	50.0%	64	38	59.4%
Senate	38	25	15	60.0%	5	2	40.0%	30	17	56.7%
Total	113	80	49	61.3%	13	6	46.2%	94	55	58.5%

2010-2020

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

State legislative incumbents in contested primaries in Rhode Island, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	113	79	15	19.0%	8	3	37.5%	88	18	20.5%
2012	113	78	36	46.2%	15	4	26.7%	94	40	42.6%
2014	113	92	58	63.0%	9	3	33.3%	102	61	59.8%
2016	113	85	44	51.8%	13	4	30.8%	99	49	49.5%
2018	113	83	48	57.8%	12	3	25.0%	95	51	53.7%
2020	113	80	49	61.3%	13	6	46.2%	94	55	58.5%

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. A total of 154 incumbents advanced to the general election: 59 Democrats and 95 Republicans. Of that total, 77 incumbents—25 Democrats and 52 Republicans—had no general election challengers, representing 50.0% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in South Carolina, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	124	41	19	46.3%	70	43	61.4%	111	62	55.9%
Senate	46	18	6	33.3%	25	9	36.0%	43	15	34.9%
Total	170	59	25	42.4%	95	52	54.7%	154	77	50.0%

2010-2020

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

State legislative incumbents in contested primaries in South Carolina, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	124	48	33	68.8%	58	37	63.8%	106	70	66.0%
2012	170	55	41	74.5%	89	68	76.4%	144	109	75.7%
2014	124	41	28	68.3%	71	55	77.5%	112	83	74.1%
2016	170	56	43	76.8%	88	69	78.4%	144	112	77.8%
2018	124	39	24	61.5%	72	37	51.4%	111	61	55.0%
2020	170	59	25	42.4%	95	52	54.7%	154	77	50.0%

See also:

• South Carolina House of Representatives elections, 2020

South Dakota

There were 105 seats up for election in South Dakota. A total of 72 incumbents advanced to the general election: 13 Democrats and 59 Republicans. Of that total, 24 incumbents—three Democrats and 21 Republicans—had no general election challengers, representing 33.3% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in South Dakota, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	70	10	3	30.0%	40	14	35.0%	50	17	34.0%
Senate	35	3	0	0.0%	19	7	36.8%	22	7	31.8%
Total	105	13	3	23.1%	59	21	35.6%	72	24	33.3%

2010-2020

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

State legislative incumbents in contested primaries in South Dakota, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	105	25	6	24.0%	44	11	25.0%	69	17	24.6%
2012	105	13	6	46.2%	53	14	26.4%	66	20	30.3%
2014	105	16	7	43.8%	58	23	39.7%	74	30	40.5%
2016	105	10	5	50.0%	50	11	22.0%	60	16	26.7%
2018	105	9	4	44.4%	67	0	0.0%	76	4	5.3%
2020	105	13	3	23.1%	59	21	35.6%	72	24	33.3%

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. A total of 105 incumbents advanced to the general election: 25 Democrats, 79 Republicans, and one independent or minor party incumbent. Of that total, 54 incumbents—19 Democrats and 35 Republicans—had no general election challengers, representing 51.4% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Tennessee, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	99	24	18	75.0%	65	32	49.2%	90	50	55.6%
Senate	16	1	1	100.0%	14	3	21.4%	15	4	26.7%
Total	115	25	19	76.0%	79	35	44.3%	105	54	51.4%

2010-2020

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

State legislative incumbents in contested primaries in Tennessee, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	116	54	17	31.5%	49	27	55.1%	104	44	42.3%
2012	115	25	12	48.0%	60	28	46.7%	86	40	46.5%
2014	116	27	13	48.1%	69	44	63.8%	96	57	59.4%
2016	115	25	13	52.0%	81	31	38.3%	106	44	41.5%
2018	116	19	15	78.9%	66	11	16.7%	85	26	30.6%
2020	115	25	19	76.0%	79	35	44.3%	105	54	51.4%

See also:

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

Texas

There were 166 seats up for election in Texas. A total of 151 incumbents advanced to the general election: 68 Democrats and 83 Republicans. Of that total, 45 incumbents—24 Democrats and 21 Republicans—had no general election challengers, representing 29.8% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Texas, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	150	62	24	38.7%	74	20	27.0%	136	44	32.4%
Senate	16	6	0	0.0%	9	1	11.1%	15	1	6.7%
Total	166	68	24	35.3%	83	21	25.3%	151	45	29.8%

2010-2020

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

State legislative incumbents in contested primaries in Texas, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	166	71	26	36.6%	80	31	38.8%	151	57	37.7%
2012	181	52	21	40.4%	83	37	44.6%	135	58	43.0%
2014	165	55	30	54.5%	83	0	0.0%	138	30	21.7%
2016	166	53	34	64.2%	90	44	48.9%	144	78	54.2%
2018	165	52	37	71.2%	90	20	22.2%	142	57	40.1%
2020	166	68	24	35.3%	83	21	25.3%	151	45	29.8%

See also:

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

Utah

There were 90 seats up for election in Utah. A total of 74 incumbents advanced to the general election: 15 Democrats and 59 Republicans. Of that total, 18 incumbents—two Democrats and 16 Republicans—had no general election challengers, representing 24.3% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Utah, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	75	13	2	15.4%	50	10	20.0%	63	12	19.0%
Senate	15	2	0	0.0%	9	6	66.7%	11	6	54.5%
Total	90	15	2	13.3%	59	16	27.1%	74	18	24.3%

2010-2020

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

State legislative incumbents in contested primaries in Utah, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	90	27	1	3.7%	52	12	23.1%	79	13	16.5%
2012	91	15	0	0.0%	55	11	20.0%	70	11	15.7%
2014	89	13	4	30.8%	61	13	21.3%	74	17	23.0%
2016	90	13	5	38.5%	63	21	33.3%	76	26	34.2%
2018	89	14	1	7.1%	53	7	13.2%	67	8	11.9%
2020	90	15	2	13.3%	59	16	27.1%	74	18	24.3%

See also:

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

Vermont

There were 180 seats up for election in Vermont. A total of 156 incumbents advanced to the general election: 104 Democrats, 44 Republicans, and eight independent or minor party incumbents. Of that total, 61 incumbents—40 Democrats, 19 Republicans, and two independent or minor party incumbents—had no general election challengers, representing 39.1% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Vermont, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	150	83	38	45.8%	39	16	41.0%	129	56	43.4%
Senate	30	21	2	9.5%	5	3	60.0%	27	5	18.5%
Total	180	104	40	38.5%	44	19	43.2%	156	61	39.1%

2010-2020

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

State legislative incumbents in contested primaries in Vermont, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	180	106	27	25.5%	47	20	42.6%	158	47	29.7%
2012	180	106	51	48.1%	45	17	37.8%	155	70	45.2%
2014	180	105	41	39.0%	44	19	43.2%	152	61	40.1%
2016	180	88	31	35.2%	57	19	33.3%	151	52	34.4%
2018	180	91	41	45.1%	44	11	25.0%	145	55	37.9%
2020	180	104	40	38.5%	44	19	43.2%	156	61	39.1%

See also:

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

Washington

There were 123 seats up for election in Washington. A total of 107 incumbents advanced to the general election: 62 Democrats and 45 Republicans. Of that total, 14 incumbents—seven Democrats and seven Republicans—had no general election challengers, representing 13.1% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Washington, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	98	50	6	12.0%	35	4	11.4%	85	10	11.8%
Senate	25	12	1	8.3%	10	3	30.0%	22	4	18.2%
Total	123	62	7	11.3%	45	7	15.6%	107	14	13.1%

2010-2020

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

State legislative incumbents in contested primaries in Washington, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	123	64	7	10.9%	38	16	42.1%	102	23	22.5%
2012	124	53	11	20.8%	44	17	38.6%	97	28	28.9%
2014	123	63	10	15.9%	47	10	21.3%	110	20	18.2%
2016	124	51	14	27.5%	51	11	21.6%	102	25	24.5%
2018	123	58	13	22.4%	46	2	4.3%	104	15	14.4%
2020	123	62	7	11.3%	45	7	15.6%	107	14	13.1%

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. A total of 84 incumbents advanced to the general election: 33 Democrats and 51 Republicans. Of that total, 13 incumbents—two Democrats and 11 Republicans—had no general election challengers, representing 15.5% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in West Virginia, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	100	30	2	6.7%	44	10	22.7%	74	12	16.2%
Senate	17	3	0	0.0%	7	1	14.3%	10	1	10.0%
Total	117	33	2	6.1%	51	11	21.6%	84	13	15.5%

2010-2020

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

State legislative incumbents in contested primaries in West Virginia, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	117	74	19	25.7%	25	5	20.0%	99	24	24.2%
2012	117	64	13	20.3%	32	10	31.3%	96	23	24.0%
2014	117	54	1	1.9%	44	10	22.7%	98	11	11.2%
2016	117	34	1	2.9%	56	4	7.1%	90	5	5.6%
2018	117	37	3	8.1%	56	3	5.4%	94	6	6.4%
2020	117	33	2	6.1%	51	11	21.6%	84	13	15.5%

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. A total of 94 incumbents advanced to the general election: 32 Democrats and 62 Republicans. Of that total, 22 incumbents—eight Democrats and 14 Republicans—had no general election challengers, representing 23.4% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Wisconsin, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	99	28	6	21.4%	57	12	21.1%	85	18	21.2%
Senate	16	4	2	50.0%	5	2	40.0%	9	4	44.4%
Total	115	32	8	25.0%	62	14	22.6%	94	22	23.4%

2010-2020

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

State legislative incumbents in contested primaries in Wisconsin, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	116	51	8	15.7%	40	13	32.5%	92	21	22.8%
2012	115	34	16	47.1%	58	6	10.3%	92	22	23.9%
2014	116	36	19	52.8%	51	23	45.1%	87	42	48.3%
2016	115	39	26	66.7%	63	19	30.2%	102	45	44.1%
2018	116	35	24	68.6%	63	7	11.1%	98	31	31.6%
2020	115	32	8	25.0%	62	14	22.6%	94	22	23.4%

See also:

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

Wyoming

There were 75 seats up for election in Wyoming. A total of 54 incumbents advanced to the general election: seven Democrats, 46 Republicans, and one independent or minor party incumbent. Of that total, 34 incumbents—three Democrats and 31 Republicans—had no general election challengers, representing 63.0% of incumbents on the general election ballot.

In 2010

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

State legislative incumbents with no general election challengers in Wyoming, 2020
Chamber	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
House	60	6	3	50.0%	37	25	67.6%	44	28	63.6%
Senate	15	1	0	0.0%	9	6	66.7%	10	6	60.0%
Total	75	7	3	42.9%	46	31	67.4%	54	34	63.0%

2010-2020

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

State legislative incumbents in contested primaries in Wyoming, 2010-2020
Year	Seats
		Democratic			Republican			Total
		Incs.	Uncont.	%	Incs.	Uncont.	%	Incs.	Uncont.	%
2010	75	18	6	33.3%	42	35	83.3%	60	41	68.3%
2012	75	9	3	33.3%	48	37	77.1%	57	40	70.2%
2014	75	9	5	55.6%	51	36	70.6%	60	41	68.3%
2016	75	9	4	44.4%	44	9	20.5%	53	13	24.5%
2018	75	9	5	55.6%	53	35	66.0%	62	40	64.5%
2020	75	7	3	42.9%	46	31	67.4%	54	34	63.0%

See also:

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

Terms and definitions

Incumbent

See also: Incumbent

Ballotpedia defines incumbency by chamber. Under this definition, if an incumbent in House District 1 filed for re-election in House District 2, they would still be counted as an incumbent due to their remaining in the same chamber even though they ran for a different seat. If an incumbent in House District 1 filed to run in Senate District 2, they would not be counted as an incumbent in the Senate race since they are coming from a different chamber.

Ballotpedia uses the term re-elect to refer to any incumbent who is running in an election to retain their office, including incumbents who were originally appointed to their position.

Uncontested general election

See also: General election

An uncontested general election is one where there is one candidate running, meaning the candidate will automatically win the election.

Methodology

Candidacy withdrawals

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

In order to have their names printed on election ballots, candidates must submit information prior to a filing deadline. Filing deadlines are the dates by which candidates must submit required paperwork to state election administrators.

For major party candidates, filing deadlines always precede primaries. However, candidates may choose to withdraw before the primary or general 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 primary or general ballot. If an incumbent officially withdrew before the general election, they are not included in any of the totals of this analysis, unless they later re-entered the race as a minor party or independent candidate.

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 an incumbent unofficially withdrew, they are included in the totals of this analysis.

See also

• Election results, 2020: State legislatures
• 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
  • Major party competition in state legislative elections, 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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