Colorado's 4th Congressional District
As of October 19, 2026, Colorado's 4th congressional district (CO-4) is represented in the U.S. House of Representatives by Lauren Boebert, a Republican who has served in the House since 2021. The seat is on the ballot on Tuesday, November 3, 2026, as every House seat is every two years; the current term ends January 3, 2027. As of Monday, October 19, 2026, Election Day is 15 days away. Referandom does not list candidates; the Colorado election office publishes them.
Representative Serving Now
Lauren BoebertRepublican, CO-4, term ends January 3, 2027
How Did Lauren Boebert Vote?
As of September 16, 2026, Lauren Boebert (R-CO) has voted Yea or Nay on 315 of the 335 bills and resolutions that came to a deciding roll call in the House in the 119th Congress and missed 20 (6%). Boebert voted with the majority of Republicans 87% of the time.
- Lauren Boebert (R-CO) did not vote on S. 2403, the Retire through Ownership Act, on September 16, 2026 (House Roll Call 314).
- Lauren Boebert (R-CO) voted Yea on H.R. 9497, the Water Resources Development Act of 2026, on September 16, 2026 (House Roll Call 313).
- Lauren Boebert (R-CO) voted Yea on H.J.Res. 213 on September 16, 2026 (House Roll Call 311).
From the roll calls of the Clerk of the House. Every Vote by Lauren Boebert →
On the Ballot November 3, 2026
- The seat is on the ballot on Tuesday, November 3, 2026, as every House seat is every two years; the current term ends January 3, 2027.
- Referandom does not list candidates, polls or forecasts; the Colorado election office publishes the candidates.
- District lines are drawn by each state and can change between elections. This is the district of the 119th Congress; the state or local election office can tell you which district you vote in.
2026 Elections in Colorado → Every Seat on the Ballot in 2026 →
Other Districts in Colorado
- CO-1 Diana DeGette (D)
- CO-2 Joe Neguse (D)
- CO-3 Jeff Hurd (R)
- CO-5 Jeff Crank (R)
- CO-6 Jason Crow (D)
- CO-7 Brittany Pettersen (D)
- CO-8 Gabe Evans (R)
Colorado's Senators
- Michael F. Bennet (D), term ends January 3, 2029
- John W. Hickenlooper (D), term ends January 3, 2027
Senators represent the whole state, every district alike.
Questions About Colorado's 4th Congressional District
Who Represents Colorado's 4th Congressional District?
As of October 19, 2026, Colorado's 4th congressional district (CO-4) is represented in the U.S. House of Representatives by Lauren Boebert, a Republican who has served in the House since 2021.
Is Colorado's 4th Congressional District on the Ballot in 2026?
Yes. The seat is on the ballot on Tuesday, November 3, 2026, as every House seat is every two years; the current term ends January 3, 2027. Referandom does not list candidates; the Colorado election office publishes them.
How Did Lauren Boebert Vote?
As of September 16, 2026, Lauren Boebert (R-CO) has voted Yea or Nay on 315 of the 335 bills and resolutions that came to a deciding roll call in the House in the 119th Congress and missed 20 (6%). Boebert voted with the majority of Republicans 87% of the time.
How Many Congressional Districts Does Colorado Have?
Colorado has 8 congressional districts in the 119th Congress, each with one seat in the House of Representatives. Its senators are Michael F. Bennet (D) and John W. Hickenlooper (D).
More About Colorado in Congress
Members, seats and terms from Congress.gov, the Clerk of the House and the congress-legislators project; votes from the Clerk's roll calls, current through .
Cite This Page
Referandom. (2026, September 16). Colorado's 4th Congressional District: Who Represents It. CDR Technology Foundation, Inc. Retrieved October 19, 2026, from https://www.referandom.us/districts/co-4