County Rankings

All 64 Colorado counties ranked by crashes in the trailing 12 months, with change versus the prior 12-month window.

Total Counties

64

Highest Crash Rate

38.8/1K

Counties Improving

49

Counties Worsening

14

Crash Density by County

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All Counties

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	Injuries	Fatalities	Population	Rate/1K	Prior 12M Change
#1	Denver	28,241	5,420	96	727,211	38.8	12.0%
#2	El Paso	9,516	4,540	84	730,395	13.0	3.0%
#3	Arapahoe	9,288	3,981	55	656,590	14.2	1.0%
#4	Adams	9,055	3,265	54	519,572	17.4	18.0%
#5	Jefferson	7,005	2,368	37	582,910	12.0	20.0%
#6	Larimer	5,621	2,111	30	359,066	15.7	7.0%
#7	Weld	5,537	1,731	72	328,981	16.8	15.0%
#8	Douglas	4,692	1,496	26	357,978	13.1	12.0%
#9	Boulder	3,921	1,460	14	330,758	11.8	25.0%
#10	Pueblo	2,833	1,273	32	168,424	16.8	27.0%
#11	Mesa	2,304	1,001	22	157,100	14.7	4.0%
#12	La Plata	1,167	325	1	56,221	20.8	2.0%
#13	Garfield	1,163	278	6	62,061	18.7	14.0%
#14	Broomfield	1,072	233	5	74,112	14.5	6.0%
#15	Eagle	932	286	2	55,731	16.7	2.0%

Showing 1 to 15 of 64 results

High risk (Rate > 40/1K)

Medium risk (Rate 30-40/1K)

Lower risk (Rate < 30/1K)

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Cite this data

CrashStory. "Colorado County Crash Rankings." CrashStory, 2026. . Based on official CDOT crash records.