Colorado’s 4th District
U.S. House · CO-4
Election day November 3, 2026 · forecast of October 15, 2026
Our forecast gives the Republicans a 67% chance of winning, with an average lead of 6.3 points.
Competitive. Chance of a final gap under 5 points: 48%.
Compared with the average
| Republican | Democrat | Other | |
|---|---|---|---|
| CO-4 | 49.6% | 46.6% | 3.8% |
| National averageUnited States | 44.2%+5.4 | 54.5%−7.9 | 1.2%+2.5 |
Simple average of the 435 districts, not weighted by population.
Projection track
How the projection has moved
Polls in this district
1 poll
Each poll as the pollster published it; these are not the Vote-Scope projection. When a pollster tests several ballots (with or without a given candidate), each one is shown as a scenario.
Local profile
| Latino citizens aged 18 and over | 11.8% (± 0.3) |
|---|
Current member
Lauren Boebert · Republican
Primary results
| Democratic primary | Eileen Laubacher | 100.0% | 72,483 votes |
|---|---|---|---|
| Republican primary | Lauren Boebert | 100.0% | 92,651 votes |
Republican 
Democrat Previous election (2024)
The Republicans won by 11.6 points.
Our current projection: the Republicans ahead by 6.3 points.
Watch list
The tightest races
The smallest projected gaps between the top two.
- Forecast updated