2018 United States House of Representatives elections in Colorado
The 2018 United States House of Representatives elections in Colorado were held on November 6, 2018, to elect the seven U.S. Representatives from the state of Colorado, one from each of the state's seven congressional districts. The Republican and Democratic Party primaries in Colorado were held on June 26, 2018. The elections coincided with the gubernatorial election, as well as other elections to the House of Representatives, elections to the United States Senate, and various state and local elections.
Overview
Results of the 2018 United States House of Representatives elections in Colorado by district:District 1
The 1st district is located in Central Colorado and includes most of the city of Denver. The incumbent is Democrat Diana DeGette, who has represented the district since 1997. She was re-elected to an eleventh term with 68% of the vote in 2016.Democratic primary
Candidates
;Declared- Diana DeGette, incumbent
- Saira Rao
- David Sedbrook
Endorsements
Results
Republican primary
Candidates
;Declared- Casper Stockham
Results
General election
Results
District 2
The 2nd district is located in Northern Colorado and encompasses seven counties. The incumbent is Democrat Jared Polis, who has represented the district since 2009. He was re-elected to a fifth term with 57% of the vote in 2016.Polis is running for Governor of Colorado. He won the Democratic nomination for the general election in November.
Democratic primary
Candidates
;Declared- Joe Neguse, former executive director of the Colorado Department of Regulatory Agencies and nominee for Secretary of State of Colorado in 2014
- Mark Williams, businessman and former chair of the Boulder County Democratic Party
- Kristopher Larsen, Mayor of Nederland
- Howard Dotson, pastor and candidate for Loveland City Council in 2017
- Ken Toltz, businessman and nominee for CO-06 in 2000
Endorsements
Results
Republican primary
Candidates
;Declared- Peter Yu
Results
Libertarian primary
Candidates
Nominated- Roger Barris
- Todd Mitchem
Independents
Candidates
;Declared- Nick Thomas
General election
Results
District 3
The 3rd district is located in Western and Southern Colorado and includes a large number of sparsely populated counties and the city of Grand Junction. The incumbent is Republican Scott Tipton, who has represented the district since 2011. He was re-elected to a fourth term with 55% of the vote in 2016. This is one of 80 Republican-held House districts targeted by the Democratic Congressional Campaign Committee in 2018.Democratic primary
Candidates
;Declared- Diane Mitsch Bush, former state representative
- Karl Hanlon, Glenwood Springs city attorney
- Arn Menconi, former Eagle County commissioner
- Chris Kennedy, Grand Junction city councilman
Results
Republican primary
Candidates
;Declared- Scott Tipton, incumbent
Results
General election
Polling
Results
District 4
The 4th district is located in Eastern Colorado and includes numerous sparsely populated counties. The incumbent is Republican Ken Buck, who has represented the district since 2015. He was re-elected to a second term with 64% of the vote in 2016.Democratic primary
Candidates
;Declared- Chase Kohne
- Karen McCormick
- Larry Germanson
- Richard Weil
Results
Endorsements
Republican primary
Candidates
;Declared- Ken Buck, incumbent
- Jim Gunning, former Lone Tree mayor
Results
General election
Results
District 5
The 5th district is located in Central Colorado and includes Fremont, El Paso, Teller and Chaffee counties and the city of Colorado Springs. The incumbent is Republican Doug Lamborn, who has represented the district since 2007. He was re-elected to a sixth term with 62% of the vote in 2016.Democratic primary
Candidates
;Declared- Stephany Rose Spaulding
- Marcus Murphy
- Kimberly Sugarmen
- Betty Field
- Lori Furstenberg
Results
Republican primary
Declared
- Darryl Glenn, El Paso County Commissioner and 2016 Republican nominee for the U.S. Senate from Colorado
- Owen Hill, state senator
- Bill Rhea, retired Texas judge
- Tyler Stevens, former Green Mountain Falls Mayor
- Doug Lamborn, incumbent
Withdrawn
- Tom Strand, Colorado Springs City Councilman
Polling
Results
General election
Results
District 6
The 6th district is located in Central Colorado and surrounds the city of Denver from the east, including the city of Aurora. The incumbent is Republican Mike Coffman, who has represented the district since 2009. He was re-elected to a fifth term with 51% of the vote in 2016. This is one of 80 Republican-held House districts targeted by the Democratic Congressional Campaign Committee in 2018.Democratic primary
Candidates
;Declared- Jason Crow, attorney
- Levi Tillemann, businessman
- Gabriel McArthur
- David Aarestad
Results
Republican primary
Candidates
;Declared- Mike Coffman, incumbent
Results
General election
Endorsements
Polling
Results
District 7
The 7th district is located in Central Colorado, to the north and west of Denver and includes the cities of Thornton and Westminster and most of Lakewood. The incumbent is Democrat Ed Perlmutter, who has represented the district since 2007. He was re-elected to a sixth term with 55% of the vote in 2016.Perlmutter announced a run for governor, but later withdrew from that race. He later announced that he would not run for re-election. However, on August 21, 2017, he announced that he had changed his mind.
Colorado's 7th district was included on the initial list of Democratic-held seats being targeted by the National Republican Congressional Committee in 2018. Former chair of the Jefferson County Republican Party and former vice chair of the Colorado Republican Party Don Ytterberg, who was the nominee for this seat in 2014, is rumored to be considering running.
Democratic primary
Candidates
;Declared- Ed Perlmutter, incumbent
- Dan Baer, former U.S. ambassador to the Organization for Security and Co-operation in Europe
- Andy Kerr, state senator
- Dominick Moreno, state senator
- Brittany Pettersen, state representative
Results
Republican primary
Candidates
;Declared- Mark Barrington, Lakewood businessman
Results
Independents
Candidates
;Declared- Nathan Clay
General election