Colorado's 4th District: 2026 result
Called · unofficial countLaubacher (D) 48.8%, Boebert (R) 47.9%.
Eileen Laubacher (Democratic) won Colorado's 4th District in the 3 November 2026 election, with 48.8% of the vote to Lauren Boebert's 47.9%, a margin of 0.9 points (3,237 votes). The seat changes from Republican to Democratic. Count as of November 10 at 6:18 AM EST, not yet certified.
What stands out in CO-4
from the count and past results- Democratic gain: Eileen Laubacher defeated the Republican incumbent, Lauren Boebert.
- Donald Trump carried this district by 18.0 points in 2024 (58.0% to 40.0%); Laubacher, a Democrat, won it by 0.9 points.
- Cook Partisan Voting Index for the district, on its 2026 lines: R+9. A Democrat won it.
- Decided by 0.9 points (3,237 votes): the 12th closest House race of 2026 among the 261 with a vote count.
- In 2024 the district went R+11.6 (Boebert 53.6%, Calvarese 42.0%); in 2026 it went D+0.9, a 12.5-point swing toward Democrats.
Colorado's 4th District: candidates and votes
Called · unofficial countGeneral election, 3 November 2026 · as of November 10 at 6:18 AM EST
| Candidate | Party | Votes | % |
|---|---|---|---|
| Eileen Laubacher | Democratic | 185,923 | 48.8 |
| Lauren Boebert · incumbent | Republican | 182,686 | 47.9 |
Leading candidates only: the source has not yet published the full results table for this race, so other candidates and the total are missing.
CO-4 in 2024
same district linesHouse election, 5 November 2024
| Candidate | Party | Votes | % |
|---|---|---|---|
| Lauren Boebert | Republican | 240,213 | 53.6 |
| Trisha Calvarese | Democratic | 188,249 | 42.0 |
| Hannah Goodman | Other | 11,676 | 2.6 |
| Frank Atwood | Other | 6,233 | 1.4 |
| Total | 447,807 | 100.0 |
2024 presidential vote in the district: Trump 58.0%, Harris 40.0%.
Related races
- Colorado: every 2026 House district, the delegation before and after
- Other districts in Colorado: CO-1, CO-2, CO-3, CO-5, CO-6, CO-7, CO-8
- Colorado Senate race · John Hickenlooper (D)
- Colorado governor's race · Phil Weiser (D)
- Closest House races: MN-1 (0.1), NC-5 (0.1), NC-3 (0.1), TN-4 (0.2), FL-27 (0.4)
- House results 2026: every race
Sources
- Votes and candidates: Wikipedia, 2026 United States House of Representatives elections in Colorado (revision 1384853439, November 10 at 6:18 AM EST), which cites the state election office and AP race calls.
- Race call and incumbent: Wikipedia, 2026 United States House of Representatives elections (revision 1385103391). A race is shown as called only when that article marks a winner.
- 2024 comparison: the 2024 House result from Wikipedia's 2024 House election articles; the 2024 presidential vote in the district from the district's own Wikipedia article.
- Text and figures from Wikipedia are available under CC BY-SA 4.0. Results are unofficial until the state certifies them; this page updates with the source.