Primary
Democratic Primary
Held June 30, 2026.
| Candidate | Votes | % | |
|---|---|---|---|
| Eileen Laubacher ✓ | — | — |
Republican Primary
Held June 30, 2026.
| Candidate | Votes | % | |
|---|---|---|---|
| Lauren Boebert ✓ | 92,580 | 100.0% |
Full calendar and every race: Colorado primary guide
Race Overview
General Election Polling Trend
Showing the published average. The rating above uses this figure.
The right edge is that same average of the last three polls. This is an average, not a forecast.
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General Election Polling Average
Average is the unweighted mean of the last three scientific public polls. Fewer than three uses the polls that exist. The rating uses that average when the newest poll ended in the last 30 days. The table lists the polls in that average, plus the most recent 30 days or the newest 3 polls, whichever is more. How accurate is each pollster? →
| Pollster | Date | Sample | MoE | Dem | Rep |
|---|---|---|---|---|---|
| Impact Research (D) partisan·D D-sponsored | 2026-09-24 | 403 LV | ±4.80 | Eileen Laubacher 40.00% | Lauren Boebert 45.00% |
Questions About This Race
Who is winning the 2026 CO-04 House race?
Lauren Boebert leads Eileen Laubacher 45% to 40% in the PollingSource polling average — a R+5.0 margin based on 1 poll, the last three or fewer.
Is the 2026 CO-04 House race competitive?
Yes — the PollingSource polling average rates it Lean R, the current rating band, and the race is competitive.
What does the latest poll of the 2026 CO-04 House race say?
The most recent public poll, from Impact Research (D) (completed September 24, 2026), found Eileen Laubacher (D) at 40% and Lauren Boebert (R) at 45%.
When is the 2026 CO-04 House race decided?
Election Day is Tuesday, November 3, 2026.
How is the PollingSource average calculated?
The PollingSource average is the unweighted mean of the last three scientific public polls, or fewer when fewer exist. One poll sets the rating when it ended in the last 30 days. We do not exclude pollsters. The table lists recent polls, including ones older than those three. Full details: pollingsource.com/methodology.
Independent Expenditures Updated 1 hour ago
Top Spenders
- INVEST IN TOMORROW COALITION PAC Dem-aligned $1,500,000
- FREEDOM CAUCUS FUND GOP-aligned $449,178
- AB PAC Dem-aligned $47,692
- FIELD TEAM 6, INC. Dem-aligned $558
- OUR DEMOCRACY PAC Dem-aligned $62
Full outside-spending research — every committee, every race →
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