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Fatal Crashes in Adams County, Colorado
414 fatal crashes and 447 fatalities from 2017-2023. Data from NHTSA FARS.
Deadliest fatal-crash clusters in Adams County
Locations with multiple fatal crashes on the same road segment, 2017-2023. Click any location to pull the full report — every individual crash with vehicle, person, and contributing-factor detail.
Crashes by year
| Year | Crashes | Fatalities | Drunk driver |
| 2017 | 60 | 64 | 23 |
| 2018 | 49 | 51 | 14 |
| 2019 | 63 | 69 | 26 |
| 2020 | 48 | 53 | 16 |
| 2021 | 60 | 65 | 21 |
| 2022 | 73 | 81 | 32 |
| 2023 | 61 | 64 | 29 |
Cities in Adams County
Fatal crashes by city within Adams County. Need crash history at a specific address or intersection? Our intersection report shows every fatal crash within any radius of a GPS coordinate.
| City | Crashes | Fatalities |
| AURORA | 66 | 68 |
| THORNTON | 59 | 66 |
| COMMERCE CITY | 57 | 63 |
| BRIGHTON | 37 | 41 |
| WESTMINSTER | 37 | 39 |
| NORTHGLENN | 11 | 11 |
| FEDERAL HEIGHTS | 6 | 6 |
| ARVADA | 4 | 4 |
| Other | 1 | 1 |
| BROOMFIELD | 1 | 2 |
When crashes happen
By month
| Month | Crashes |
| January | 33 |
| February | 16 |
| March | 26 |
| April | 30 |
| May | 31 |
| June | 27 |
| July | 49 |
| August | 44 |
| September | 42 |
| October | 40 |
| November | 38 |
| December | 38 |
Most dangerous hours
| Hour | Crashes |
| 19:00 | 34 |
| 22:00 | 28 |
| 00:00 | 28 |
| 21:00 | 25 |
| 18:00 | 24 |
| 02:00 | 23 |
| 01:00 | 22 |
| 17:00 | 20 |
| 20:00 | 18 |
| 04:00 | 17 |
Vehicles involved in fatal crashes
| Make | Vehicles involved |
| Chevrolet | 69 |
| Ford | 65 |
| Toyota | 53 |
| Dodge | 47 |
| Honda | 45 |
| Jeep / Kaiser-Jeep / Willys- Jeep | 32 |
| Nissan/Datsun | 29 |
| Harley-Davidson | 27 |
| GMC | 22 |
| Unknown Make | 21 |
Conditions
Weather
| Weather | Crashes |
| Clear | 202 |
| Not Reported | 185 |
| Cloudy | 13 |
| Rain | 9 |
| Snow | 3 |
| Severe Crosswinds | 1 |
| Sleet or Hail | 1 |
Collision type
| Type | Crashes |
| Single vehicle / pedestrian / object | 266 |
| Angle | 76 |
| Front-to-Rear | 29 |
| Front-to-Front | 25 |
| Sideswipe - Same Direction | 11 |
| Sideswipe - Opposite Direction | 7 |
Need crash data for a specific location in Adams County?
Our intersection report shows every fatal crash within any radius of a GPS coordinate — with a map, event sequence, contributing factors, vehicle and person details. Used by attorneys for discovery and insurance teams for risk assessment.
For programmatic access to Adams County crash data, see the API guide. $19/mo for full access.