Colorado House of Representatives elections

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

This page displays election information for the Colorado House of Representatives.

Elections

Colorado state representatives serve two-year terms, with all seats up for election every two years. Colorado holds elections for its legislature in even years.

2026

See also: Colorado House of Representatives elections, 2026

Elections for the Colorado House of Representatives will take place in 2026. The general election is on November 3, 2026. The primary is June 30, 2026. The filing deadline is March 18, 2026.

2024

See also: Colorado House of Representatives elections, 2024

Elections for the Colorado House of Representatives took place in 2024. The general election was on November 5, 2024. The primary was June 25, 2024. The filing deadline was March 19, 2024.

In the 2024 elections, Democrats held onto their majority but lost three seats, reducing their majority from 46-19 to 43-22.

Colorado House of Representatives
Party		As of November 5, 2024	After November 6, 2024
	Democratic Party	46	43
	Republican Party	19	22
Total		65	65

2022

See also: Colorado House of Representatives elections, 2022

Elections for the Colorado House of Representatives took place in 2022. The general election was on November 8, 2022. A primary was scheduled for June 28, 2022. The filing deadline was March 15, 2022.

The Democratic Party expanded its majority in the 2022 general election, from 41-22 with two vacancies, to 46-19.

Colorado House of Representatives
Party		As of November 8, 2022	After November 9, 2022
	Democratic Party	41	46
	Republican Party	22	19
	Vacancy	2	0
Total		65	65

2020

See also: Colorado House of Representatives elections, 2020

Elections for the office of Colorado House of Representatives took place in 2020. The general election was held on November 3, 2020. A primary was scheduled for June 30, 2020. The filing deadline was March 17, 2020.

In the 2020 elections, Democrats maintained their majority of 41-24 in the Colorado House of Representatives.

Colorado House of Representatives
Party		As of November 3, 2020	After November 4, 2020
	Democratic Party	41	41
	Republican Party	24	24
Total		65	65

2018

See also: Colorado House of Representatives elections, 2018

Elections for the Colorado House of Representatives took place in 2018. An open primary election took place on June 26, 2018. The general election was held on November 6, 2018. The candidate filing deadline was March 20, 2018 for major party candidates. There was an April 2, 2018, deadline for minor party candidates. There was a July 12, 2018, deadline for unaffiliated candidates.

In the 2018 elections, Democrats increased their majority in the Colorado House of Representatives from 36-29 to 41-24.

Colorado House of Representatives
Party		As of November 6, 2018	After November 7, 2018
	Democratic Party	36	41
	Republican Party	29	24
Total		65	65

2016

See also: Colorado House of Representatives elections, 2016

Elections for the Colorado House of Representatives took place in 2016. The primary election took place on June 28, 2016, and the general election was held on November 8, 2016. The candidate filing deadline was April 4, 2016. All 65 seats in the Colorado House of Representatives were up for election in 2016.

The Colorado State Senate was one of 20 battleground chambers in 2016. Heading into the election, Democrats held a 34-31 majority. Democrats gained three seats in the election, giving them a 37-28 majority.

Colorado House of Representatives
Party		As of November 7, 2016	After November 8, 2016
	Democratic Party	34	37
	Republican Party	31	28
Total		65	65

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

2014 See also: Colorado House of Representatives elections, 2014 Elections for the Colorado House of Representatives took place in 2014. A primary election took place on June 24, 2014. The general election was held on November 4, 2014. The signature filing deadline for candidates wishing to run in this election was March 31, 2014. All 65 seats were up for election in 2014. Heading into the election, Democrats held a 37-28 majority. Democrats lost three seats in the election, giving them a 34-31 majority. Colorado House of Representatives Party As of November 3, 2014 After November 4, 2014      Democratic Party 37 34      Republican Party 28 31 Total 65 65 2012 See also: Colorado House of Representatives elections, 2012 Elections for the office of Colorado House of Representatives took place in 2012. The primary election was held on June 26, 2012, and the general election was held on November 6, 2012. The candidate filing deadline was April 2, 2012. All 65 seats were up for election in 2012. Heading into the election, Republicans held a 33-32 majority. Republicans lost five seats in the election, giving Democrats a 37-28 majority. Colorado House of Representatives Party As of November 5, 2012 After the 2012 Election      Democratic Party 32 37      Republican Party 33 28 Total 65 65 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, Colorado House of Representatives District Winner Margin of Victory Total Votes Top Opponent District 59 Michael McLachlan 2.2% 42,347 J. Paul Brown District 47 Clarice Navarro-Ratzlaff 3.5% 35,208 Chuck Rodosevich District 33 Dianne Primavera 5.2% 42,970 David J. Pigott District 3 Daniel Kagan 6.3% 38,629 Brian Watson District 23 Max Tyler 6.6% 40,584 Rick Enstrom District 29 Tracy Kraft-Tharp 8.2% 37,778 Robert Ramirez District 37 Spencer Swalm 8.5% 40,691 Jan Spooner District 22 Justin Everett 8.7% 44,187 Mark Parker District 28 Amy Attwood 9.8% 37,189 Brittany Pettersen District 27 Libbi Szabo 10.2% 44,393 Tim Allport 2010 See also: Colorado House of Representatives elections, 2010 Elections for the office of Colorado House of Representatives took place in 2010. The primary election was held on August 10, 2010, and the general election was held on November 2, 2010. The candidate filing deadline was May 27, 2010. All 65 seats were up for election in 2010. Heading into the election, Democrats held a 37-27 majority. Democrats lost five seats in the election, giving Republicans a 33-32 majority. Colorado House of Representatives Party As of November 1, 2010 After the 2010 Election      Democratic Party 37 32      Republican Party 27 33      Independent 1 0 Total 65 65 In 2010, the candidates running for the house raised a total of $5,062,910 in campaign funds. Their top 10 contributors were: 2010 Donors, Colorado House of Representatives Donor Amount Kellogg, Lisa $144,566 Colorado Professional Fire Fighters $100,500 House Majority Project State Democratic Campaign Fund $97,509 Colorado Education Association $85,025 Copic Insurance Small Donor Committee $63,440 Colorado State Conference of Electrical Workers Small Donor Committee (CSCEW) $58,775 Colorado Association of Realtors Small Donor Committee $57,700 Service Employees International Local 105 $50,075 Colorado Medical Society $43,800 American Federation of State County & Municipal Employees $38,900 2008 See also: Colorado House of Representatives elections, 2008 Elections for the office of Colorado House of Representatives consisted of a primary election on August 12, 2008, and a general election on November 4, 2008. All 65 seats were up for election in 2008. During the 2008 elections, the total value of contributions to House candidates was $2,735,632. The top 10 contributors were: 2008 Donors, Colorado House of Representatives Donor Amount Hasan, Ali $350,794 Colorado Democratic Party House Majority Project $152,679 Colorado Professional Fire Fighters $126,000 Food & Commercial Workers Local 7 $110,000 Colorado Education Association $109,600 Colorado Association Of Realtors $100,500 McCluskey, Bob $93,906 Thomason, Tom $91,400 Service Employees Local 105 $60,789 American Federation Of State County & Municipal Employees $60,625 2006 See also: Colorado House of Representatives elections, 2006 Elections for the office of Colorado House of Representatives consisted of a primary election on August 8, 2006, and a general election on November 7, 2006. All 65 seats were up for election in 2006. During the 2006 elections, the total value of contributions to House candidates was $5,204,618. The top 10 contributors were: 2006 Donors, Colorado House of Representatives Donor Amount Marostica, Don $204,900 Mitchell, Victor $150,350 Colorado House Majority Project $128,665 Food & Commercial Workers Local 7 $104,000 Colorado Professional Fire Fighters $102,500 Copic Insurance $81,932 Colorado State Conference Of Electrical Workers $76,100 Looper, Marsha $72,558 Colorado AFL-CIO $71,400 Colorado Education Association $71,331 2004 See also: Colorado House of Representatives elections, 2004 Elections for the office of Colorado House of Representatives consisted of a primary election on August 10, 2004, and a general election on November 2, 2004. All 65 seats were up for election in 2004. During the 2004 elections, the total value of contributions to House candidates was $3,743,809. The top 10 contributors were: 2004 Donors, Colorado House of Representatives Donor Amount Bjorklund, Shari $123,679 Colorado Professional Fire Fighters $101,200 Colorado Democratic Party $92,062 Colorado Education Association $63,900 Colorado Association Of Realtors $50,350 Colorado AFL-CIO $44,000 Copic Insurance $38,100 Food & Commercial Workers Local 7 $37,938 Communications Workers $34,200 Colorado Rural Electric Association $31,500 2002 See also: Colorado House of Representatives elections, 2002 Elections for the office of Colorado House of Representatives consisted of a primary election on August 10, 2002, and a general election on November 2, 2002. All 65 seats were up for election in 2002. During the 2002 elections, the total value of contributions to House candidates was $5,389,097. The top 10 contributors were: 2002 Donors, Colorado House of Representatives Donor Amount Colorado Republican Party $367,671 Democratic House Majority Fund Of Colorado $210,208 Colorado Democratic Party $96,078 Colorado Association Of Realtors $55,200 Copic Insurance $54,975 Philip Morris $54,500 AT&T $52,750 Colorado Chiropractic Association $50,700 Colorado Professional Fire Fighters $45,500 Colorado Concern State PAC $43,100 2000 See also: Colorado House of Representatives elections, 2000 Elections for the office of Colorado House of Representatives consisted of a primary election on August 8, 2000, and a general election on November 7, 2000. All 65 seats were up for election in 2000. During the 2000 elections, the total value of contributions to House candidates was $3,743,809. The top 10 contributors were: 2000 Donors, Colorado House of Representatives Donor Amount Colorado Democratic Party $67,505 Colorado Republican Party $57,706 Colorado Association Of Realtors $34,850 Colorado Republican Committee House Leadership Trust $31,450 Philip Morris $30,500 Construction Coop Council $27,700 Colorado Professional Fire Fighters $27,600 Colorado Concern State PAC $27,500 Colorado State Conference Of Electrical Workers $23,750 Colorado Rural Electric Association $23,500

Historical party control

Democrats won control of the Colorado House of Representatives in 2012. In 2024, they won a 43-22 majority.

The table below shows the partisan history of the Colorado House 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.

Colorado House of Representatives election results: 1992-2024

Year	'92	'94	'96	'98	'00	'02	'04	'06	'08	'10	'12	'14	'16	'18	'20	'22	'24
Democrats	31	24	24	26	27	28	33	39	38	32	37	34	37	41	41	46	43
Republicans	34	41	41	39	38	37	32	26	27	33	28	31	28	24	24	19	22

Before 1992

Between 1900 and 2022, the chamber changed partisan hands 19 times.

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, Colorado was under the following types of trifecta control:

• Democratic trifecta: 2007-2010, 2013-2014, 2019-2023
• Republican trifecta: 1999-2000, 2003-2004
• Divided government: 1992-1998, 2001-2002, 2005-2006, 2011-2012, 2015-2018

Colorado Party Control: 1992-2025
Thirteen years of Democratic trifectas  •  Four years of 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
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Senate	R	R	R	R	R	R	R	R	R	D	D	R	R	D	D	D	D	D	D	D	D	D	D	R	R	R	R	D	D	D	D	D	D	D
House	R	R	R	R	R	R	R	R	R	R	R	R	R	D	D	D	D	D	D	R	R	D	D	D	D	D	D	D	D	D	D	D	D	D

Footnotes

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