Hawaii State Senate elections

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State Legislatures State legislative elections, 2025 Poll opening and closing times

This page displays election information for the Hawaii State Senate.

Elections

Hawaii state senators serve 2-4-4 terms, where senators serve one two-year term and two four-year terms each decade. Hawaii holds elections for its legislature in even years.

2026

See also: Hawaii State Senate elections, 2026

Elections for the Hawaii State Senate will take place in 2026. The general election is on November 3, 2026.

2024

See also: Hawaii State Senate elections, 2024

Elections for the Hawaii State Senate took place in 2024. The general election was on November 5, 2024. The primary was August 10, 2024. The filing deadline was June 4, 2024.

In the 2024 elections, the Democratic majority in the Hawaii State Senate decreased from 23-2 to 22-3.

Hawaii State Senate
Party		As of November 5, 2024	After November 6, 2024
	Democratic Party	23	22
	Republican Party	2	3
Total		25	25

2022

See also: Hawaii State Senate elections, 2022

Elections for the Hawaii State Senate took place in 2022. The general election was on November 8, 2022. A primary was scheduled for August 13, 2022. The filing deadline was June 7, 2022.

In the 2022 elections, the Democratic majority in the Hawaii State Senate was reduced from 24-1 to 23-2.

Hawaii State Senate
Party		As of November 8, 2022	After November 9, 2022
	Democratic Party	24	23
	Republican Party	1	2
Total		25	25

2020

See also: Hawaii State Senate elections, 2020

Elections for the office of Hawaii State Senate took place in 2020. The general election was held on November 3, 2020. A primary was scheduled for August 8, 2020. The filing deadline was June 2, 2020.

In the 2020 elections, Democrats maintained their 24-1 majority in the Hawaii State Senate.

Hawaii State Senate
Party		As of November 3, 2020	After November 4, 2020
	Democratic Party	24	24
	Republican Party	1	1
Total		25	25

2018

See also: Hawaii State Senate elections, 2018

Elections for the Hawaii State Senate took place in 2018. An open primary election took place on August 11, 2018, and the general election was held on November 6, 2018. The candidate filing deadline was June 5, 2018.

In the 2018 elections, the Democratic majority in the Hawaii State Senate was reduced from 25-0 to 24-1.

Hawaii State Senate
Party		As of November 6, 2018	After November 7, 2018
	Democratic Party	25	24
	Republican Party	0	1
Total		25	25

2016

See also: Hawaii State Senate elections, 2016

Elections for the Hawaii State Senate took place in 2016. The primary election took place on August 13, 2016, and the general election was held on November 8, 2016. The candidate filing deadline was June 7, 2016. A total of 14 seats out of the 25 seats in the Hawaii State Senate were up for election in 2016.

Heading into the election, Democrats held a 24-1 majority. Democrats ousted the lone Republican incumbent, resulting in a chamber represented entirely by Democrats.

Hawaii State Senate
Party		As of November 7, 2016	After November 8, 2016
	Democratic Party	24	25
	Republican Party	1	0
Total		25	25

Click [show] to see election information dating back to 2000

2014 See also: Hawaii State Senate elections, 2014 Elections for the Hawaii State Senate took place in 2014. A primary election took place on August 9, 2014. The general election was held on November 4, 2014. The signature filing deadline for candidates wishing to run in this election was June 3, 2014. Heading into the election, Democrats held a 24-1 majority. No partisan change occurred in the election. Hawaii State Senate Party As of November 3, 2014 After November 4, 2014      Democratic Party 24 24      Republican Party 1 1 Total 25 25 2012 See also: Hawaii State Senate elections, 2012 Elections for the office of Hawaii State Senate took place in 2012. The primary election was held on August 11, 2012, and the general election was held on November 6, 2012. The candidate filing deadline was June 5, 2012. A total of 25 seats were up for election. Heading into the election, Democrats held a 24-1 majority. No partisan change occurred in the election. Hawaii State Senate Party As of November 5, 2012 After the 2012 Election      Democratic Party 24 24      Republican Party 1 1 Total 25 25 The table below details the 10 districts with the smallest margin of victory in the November 6 general election in 2012. 2012 Margin of Victory, Hawaii State Senate District Winner Margin of Victory Total Votes Top Opponent District 23 Clayton Hee 6.9% 13,035 Colleen Meyer District 25 Laura Thielen 19% 23,036 Fred Hemmings District 9 Samuel Slom 20.3% 24,822 Kurt Lajala District 12 Brickwood Galuteria 29.6% 14,097 Liz Larson District 4 Malama Solomon 33.2% 14,762 Kelly Greenwell District 20 Mike Gabbard 43.8% 13,049 Dean Kalani Capelouto District 18 Michelle Kidani 44.5% 20,091 Rojo Herrera District 6 Rosalyn Baker 45% 13,525 Bart Mulvihill District 22 Donovan Dela Cruz 47.1% 14,133 Charles Aki District 21 Maile Shimabukuro 53.5% 10,337 Dickyj Johnson 2010 See also: Hawaii State Senate elections, 2010 Elections for the office of Hawaii State Senate took place in 2010. The primary election was held on September 18, 2010, and the general election was held on November 2, 2010. The candidate filing deadline was July 20, 2010. Heading into the election, Democrats held a 23-2 majority. Democrats gained one seat in the election, giving them a 24-1 majority. Hawaii State Senate Party As of November 1, 2010 After the 2010 Election      Democratic Party 23 24      Republican Party 2 1 Total 25 25 Campaign contributions This chart shows how many candidates ran for state senate in Hawaii in past years and the cumulative amount of campaign contributions in state senate races, including contributions in both primary and general election contests. All figures come from Follow The Money. Year Number of candidates Total contributions 2010 46 $1,586,733 2008 26 $2,020,962 2006 28 $1,237,247 2004 25 $1,646,425 2002 59 $1,635,442 In 2010, the total amount of contributions raised in state Senate elections was $1,586,733. The top 10 donors were: 2010 Donors, Hawaii State Senate Donor Amount Hawaii Association of Realtors $44,100 Ironworkers Local 625 $34,050 Hawaii State Teachers Association $32,420 Hawaii Operating Engineers $18,222 Hawaii Carpenters & Joiners $16,800 Plumbers & Pipefitters $16,000 Operating Engineers Local 3 $16,000 Painters Local 1791 $13,450 Monsanto $12,000 Longshore & Warehouse Local 142 $11,950 2008 See also: Hawaii State Senate elections, 2008 Elections for the office of Hawaii State Senate consisted of a primary election on September 20, 2008, and a general election on November 4, 2008. During the 2008 election, the total value of contributions to Senate candidates was $2,323,064. The top 10 contributors were: 2008 Donors, Hawaii State Senate Donor Amount Hawaii Association of Realtors $45,700 United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada $44,000 Hawaii Carpenters Local 745 $32,750 Hawaii State Teachers Association $32,000 University of Hawaii Professional Assembly $28,615 Ironworkers Local 625 $27,850 Hawaii Operating Engineers $27,350 Electrical Workers Local 1186 $22,800 Outrigger Enterprises $20,400 Longshore & Warehouse Local 142 $19,225 2006 See also: Hawaii State Senate elections, 2006 Elections for the office of Hawaii State Senate consisted of a primary election on September 23, 2006, and a general election on November 7, 2006. During the 2006 election, the total value of contributions to Senate candidates was $1,544,932. The top 10 contributors were: 2006 Donors, Hawaii State Senate Donor Amount Fong, Robert (Bob) $61,868 University of Hawaii Professional Assembly $52,700 Smith, Paul E $31,396 Hawaii Association of Realtors $28,600 Yee, Randall M L $25,968 Pico Jr, Thomas M $23,986 Island Insurance Co $23,550 Altria $23,000 United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada $18,000 Lockwood, Frank T $15,520 2004 See also: Hawaii State Senate elections, 2004 Elections for the office of Hawaii State Senate consisted of a primary election on September 21, 2004, and a general election on November 5, 2004. During the 2004 election, the total value of contributions to Senate candidates was $1,937,353. The top 10 contributors were: 2004 Donors, Hawaii State Senate Donor Amount Trimble, Robert A $40,000 Fox, Steven $36,025 Aduja, Peter A $31,569 Kawamoto, Cal $30,700 Altria $26,000 Trimble, Gordon $25,250 Hawaii Association of Realtors $25,050 University of Hawaii Professional Assembly $24,000 Aduja, Melodie $23,480 Pacific Northwest Ltd $19,500 2002 See also: Hawaii State Senate elections, 2002 Elections for the office of Hawaii State Senate consisted of a primary election on September 23, 2002, and a general election on November 7, 2002. During the 2002 election, the total value of contributions to Senate candidates was $1,635,442. The top 10 contributors were: 2002 Donors, Hawaii State Senate Donor Amount Trimble, Gordon M $77,020 Aduja, Peter $69,700 Trimble, Robert A $42,500 Fukunaga, Carol $41,102 Hawaii Association of Realtors $21,150 Hawaii State Teachers Association $20,687 Outrigger Enterprises $17,900 University of Hawaii Professional Assembly $16,084 Plumbers & Pipefitters $15,250 Ironworkers Local 625 $14,500 2000 See also: Hawaii State Senate elections, 2000 Elections for the office of Hawaii State Senate consisted of a primary election on September 20, 2000, and a general election on November 4, 2000. During the 2000 election, the total value of contributions to Senate candidates was $566,764. The top 10 contributors were: 2000 Donors, Hawaii State Senate Donor Amount Hawaii Insurers Council $6,000 Hawaii Association of Realtors $5,200 Outrigger Enterprises $5,150 Mccorriston Miho Miller Mukai & Mackinnon $5,000 Hawaii Medical Association $4,800 AT&T $4,550 Parsons Brinckerhoff Quade & Douglas Inc $4,350 Anheuser-Busch $4,080 Paramount Hotels Llc $4,000 First Insurance Co of Hawaii $4,000

Historical party control

Democrats won control of the Hawaii State Senate in 1962. In 2024, they won a 22-3 majority.

The table below shows the partisan history of the Hawaii Senate following every general election from 1992 to 2024. All data from 2006 or earlier comes from Michael Dubin's Party Affiliations in the State Legislatures (McFarland Press, 2007). Data after 2006 was compiled by Ballotpedia staff.

Hawaii State Senate election results: 1992-2024

Year	'92	'94	'96	'98	'00	'02	'04	'06	'08	'10	'12	'14	'16	'18	'20	'22	'24
Democrats	22	23	23	23	22	20	20	20	23	24	24	24	25	24	24	23	22
Republicans	3	2	2	2	3	5	5	5	2	1	1	1	0	1	1	2	3

Before 1992

Republicans controlled the Hawaii Senate from 1959 to 1962, the year Democrats gained control of the chamber.

Trifecta history

A state government trifecta is a term that describes single party government, when one political party holds the governor's office and has majorities in both chambers of the legislature in a state government. Between 1992 and 2023, Hawaii was under the following types of trifecta control:

• Democratic trifecta: 1992-2002, 2011-2023
• Republican trifecta: None
• Divided government: 2003-2010

Hawaii Party Control: 1992-2025
Twenty-six years of Democratic trifectas  •  No Republican trifectas
Scroll left and right on the table below to view more years.

Year	92	93	94	95	96	97	98	99	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25
Governor	D	D	D	D	D	D	D	D	D	D	D	R	R	R	R	R	R	R	R	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D
Senate	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D
House	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D

Footnotes

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