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Analyzing Data...
All 64 Colorado counties ranked by crashes in the trailing 12 months, with change versus the prior 12-month window.
Data: CDOT, trailing 12 months ending Jun 17, 2026
Total Counties
64
Highest Crash Rate
38.2/1K
Counties Improving
48
Counties Worsening
14
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Click a county for detailed analysis. Rankings use a rolling 12-month window so every county is compared on the same date range.
Rank | County | Total Crashes | Fatalities |
|---|---|---|---|
| #1 | Denver | 27,803 | 97 |
| #2 | El Paso | 9,508 | 78 |
| #3 | Arapahoe | 9,382 | 54 |
| #4 | Adams | 9,068 | 50 |
| #5 | Jefferson | 7,031 | 36 |
| #6 | Larimer | 5,664 | 30 |
| #7 | Weld | 5,557 | 67 |
| #8 | Douglas | 4,753 | 25 |
| #9 | Boulder | 3,861 | 13 |
| #10 | Pueblo | 2,823 | 31 |
| #11 | Mesa | 2,333 | 21 |
| #12 | La Plata | 1,182 | 1 |
| #13 | Garfield | 1,154 | 5 |
| #14 | Broomfield | 1,071 | 5 |
| #15 | Eagle | 927 | 2 |
Showing 1 to 15 of 64 results
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CrashStory. "Colorado County Crash Rankings." CrashStory, 2026. . Based on official CDOT crash records.