Colorado's 4th Congressional District is represented by Lauren Boebert (Republican), who has served in the House since 2021 and has represented this district since redistricting in 2025. Boebert has an overall VoteSee report card grade of C, voted in 96% of roll-call votes on bills this Congress, and votes with the Republican majority 80% of the time. The district includes Highlands Ranch, Loveland, and Castle Rock. It takes in all or part of 21 counties; the most populous parts are in Douglas County and Larimer County. About 756,000 people live in the district, and the median household income is $115,239.
Current Representative
Lauren Boebert (Republican) has served in the House since 2021 and has represented Colorado's 4th Congressional District since redistricting in 2025.
VoteSee report card grade: C
Attendance in the 119th Congress: 96% of roll-call votes on bills
Incumbent Lauren Boebert is running for re-election. 3 candidates were on the Nov 3, 2026 ballot.
Lauren Boebert (Republican), incumbent: raised $1.2M, $274K cash on hand; VoteSee report card C; 96% attendance; votes with the Republican majority 80% of the time
Eileen Laubacher (Democratic): raised $13.7M, $1.8M cash on hand
Douglas Mangeris (Libertarian)
Polls
Fewer than 2 polls ended in the last 30 days, so there is no average.
Members of Congress who previously represented Colorado's 4th Congressional District. District lines are redrawn after each census, so earlier members may have represented a different area under this number.