Colorado 1st Congressional District Representatives 2026

Browse citizen ratings for officials representing Colorado 1st Congressional District on PowerPlayers.

Your U.S. House Representative

Diana DeGette (Democrat)

Cities in Colorado 1st Congressional District

• Arvada
• Aurora
• Boulder (partial district)
• Brighton
• Commerce City
• Denver
• Edgewater
• Englewood
• Lakewood
• Littleton

Your U.S. Senators

• John Hickenlooper (Democrat)
• Michael Bennet (Democrat)

Your Governor

Dianne Primavera (Democratic)

Frequently Asked Questions

Who represents Colorado District 1 in Congress?

Diana DeGette (Democrat) currently represents Colorado's 1st Congressional District in the U.S. House of Representatives.

Who are the U.S. Senators for Colorado?

Colorado's U.S. Senators are John Hickenlooper (Democrat) and Michael Bennet (Democrat). Senators represent the entire state, including District 1.

Who represents Arvada, CO in Congress?

Arvada, CO is within Colorado's 1st Congressional District, represented by Diana DeGette (Democrat). Rate your representative on PowerPlayers.

Who represents Aurora, CO in Congress?

Aurora, CO is within Colorado's 1st Congressional District, represented by Diana DeGette (Democrat). Rate your representative on PowerPlayers.

Who represents Boulder, CO in Congress?

Parts of Boulder fall within Colorado's 1st Congressional District, represented by Diana DeGette (Democrat). Other parts of Boulder may be in adjacent districts — use the ZIP finder above to confirm your exact district.

Who represents Brighton, CO in Congress?

Brighton, CO is within Colorado's 1st Congressional District, represented by Diana DeGette (Democrat). Rate your representative on PowerPlayers.

Who represents Commerce City, CO in Congress?

Commerce City, CO is within Colorado's 1st Congressional District, represented by Diana DeGette (Democrat). Rate your representative on PowerPlayers.

Who represents Denver, CO in Congress?

Denver, CO is within Colorado's 1st Congressional District, represented by Diana DeGette (Democrat). Rate your representative on PowerPlayers.

Can I vote by mail in Colorado?

Colorado automatically mails a ballot to every registered voter — no request needed. For drop-box locations and the latest rules, visit vote.gov.

All Colorado Officials

Neighboring Districts

• Colorado 2nd Congressional District

Key Cities in Colorado 1st

• Denver
• Lakewood
• Aurora

Major Institutions and Employers

• University of Colorado Denver
• Denver International Airport
• Lockheed Martin

Data Sources

District boundary and city mapping data sourced from the U.S. Census Bureau and Federal Election Commission (FEC). Representative information reflects the 118th Congress. Challenger data reflects FEC filings as of 2026. Last updated: April 2026.

External references: Ballotpedia — Colorado 1st Congressional District | GovTrack Congress Members