Colorado Congressional Districts 2026
Colorado has 8 congressional seats in the US House of Representatives. Most competitive: CO-3 (Western slope, Lauren Boebert R+10), CO-8 (Greeley/Adams, toss-up).
Colorado House Districts Overview
| District | Rating | Region / Key Area | 2024 Margin |
|---|---|---|---|
| CO-3 | Republican | Western slope/Grand Junction | R+10 |
| CO-8 | Republican | Greeley/Weld/Adams | R+3 |
| CO-6 | Democratic | Denver suburbs/Aurora | D+8 |
| CO-7 | Democratic | Jefferson County | D+12 |
| CO-2 | Democratic | Boulder/mountain | D+20 |
District Analysis
Colorado has 8 congressional seats. CO-3 covers the rural western slope and is held by Lauren Boebert (formerly) — now represented by Jeff Hurd (R). CO-8 in the northern suburbs/Greeley is the most competitive, having been won by Democrat Yadira Caraveo in 2022 and flipped Republican in 2024.
2026 Race Outlook
Most competitive districts in Colorado for 2026: CO-3 (Western slope, Lauren Boebert R+10), CO-8 (Greeley/Adams, toss-up).
The 2026 midterm election will be held on November 3, 2026. Primary elections in Colorado are typically held in the spring or summer of 2026. Candidates begin filing in late 2025 or early 2026, depending on Colorado election law.