The deadliest roads in Wyoming
I-80 had the most fatal crashes of any numbered road in Wyoming from 2015 to 2024: 171, with 199 deaths. The 32 roads listed held 67% of all fatal crashes in Wyoming from 2015 to 2024; 3 are interstates, 13 US routes, 16 state highways.
96 numbered roads in Wyoming recorded a fatal crash in those years; the 32 with 5 or more are ranked below, and 2 have a page of their own. All fatal crashes in Wyoming.
Every numbered road in Wyoming, ranked by fatal crashes
| Road | Kind | Fatal crashes | Deaths | 2022 to 2024 | Counties with the most | |
|---|---|---|---|---|---|---|
| 1 | I-80 | Interstate | 171 | 199 | 52 | Sweetwater, Carbon, Albany |
| 2 | I-25 | Interstate | 82 | 88 | 24 | Platte, Converse, Laramie |
| 3 | US 26 | US route | 43 | 49 | 12 | Fremont, Teton, Lincoln |
| 4 | US 20 | US route | 37 | 44 | 4 | Natrona, Hot Springs, Fremont |
| 5 | I-90 | Interstate | 34 | 35 | 11 | Campbell, Johnson, Sheridan |
| 6 | US 85 | US route | 33 | 43 | 9 | Goshen, Laramie, Niobrara |
| 7 | US 287 | US route | 31 | 40 | 10 | Carbon, Albany, Fremont |
| 8 | US 30 | US route | 31 | 34 | 6 | Laramie, Lincoln, Albany |
| 9 | State Highway 59 | State highway | 28 | 31 | 11 | Campbell, Converse |
| 10 | US 14 | US route | 27 | 33 | 9 | Sheridan, Park, Crook |
| 11 | US 16 | US route | 26 | 28 | 5 | Johnson, Weston, Washakie |
| 12 | US 89 | US route | 17 | 23 | 4 | Lincoln |
| 13 | US 191 | US route | 15 | 19 | 5 | Sweetwater, Sublette |
| 14 | US 189 | US route | 15 | 17 | 4 | Sublette, Teton, Lincoln |
| 15 | US 14A | US route | 14 | 17 | 7 | Park, Big Horn, Sheridan |
| 16 | State Highway 220 | State highway | 14 | 16 | 4 | Natrona, Carbon |
| 17 | US 18 | US route | 13 | 16 | 5 | Niobrara, Converse |
| 18 | State Highway 230 | State highway | 13 | 13 | 5 | Albany, Carbon |
| 19 | State Highway 120 | State highway | 12 | 15 | 4 | Park, Hot Springs |
| 20 | State Highway 789 | State highway | 9 | 15 | 3 | Fremont, Carbon |
| 21 | State Highway 387 | State highway | 9 | 11 | 2 | Campbell, Johnson, Natrona |
| 22 | State Highway 210 | State highway | 8 | 11 | 1 | Laramie, Albany |
| 23 | State Highway 24 | State highway | 8 | 9 | 1 | Crook |
| 24 | State Highway 50 | State highway | 7 | 8 | 1 | Campbell |
| 25 | State Highway 132 | State highway | 7 | 7 | 1 | Fremont |
| 26 | State Highway 22 | State highway | 6 | 6 | 3 | Teton |
| 27 | US 212 | US route | 6 | 6 | 2 | Park, Crook |
| 28 | State Highway 137 | State highway | 5 | 11 | 0 | Fremont |
| 29 | State Highway 258 | State highway | 5 | 5 | 1 | Natrona |
| 30 | State Highway 28 | State highway | 5 | 5 | 4 | Fremont |
| 31 | State Highway 345 | State highway | 5 | 5 | 0 | Sheridan |
| 32 | State Highway 530 | State highway | 5 | 5 | 1 | Sweetwater |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Interstates in Wyoming per mile
Fatal crashes a year per 100 miles of road, 2015 to 2024, for interstates with 20 miles or more in Wyoming. Crashes per mile of road, not per vehicle. Mileage from the FHWA Interstate route log.
| Road | Per 100 miles a year | Fatal crashes | Miles | |
|---|---|---|---|---|
| 1 | I-80 | 4.25 | 171 | 403 |
| 2 | I-25 | 2.73 | 82 | 300 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes in Wyoming
- What is the deadliest road in Wyoming?
- I-80 had the most fatal crashes of any numbered road in Wyoming from 2015 to 2024: 171, with 199 deaths. I-25 was second with 82 and US 26 third with 43.
- Which interstate in Wyoming is the most dangerous per mile?
- I-80, with 4.25 fatal crashes a year per 100 miles over 2015 to 2024 on 403 miles. That is crashes per mile of road, not per vehicle.
- How many fatal crashes in Wyoming happen on numbered roads?
- 855 of 1,111 fatal crashes in Wyoming from 2015 to 2024 (77%) were filed on an interstate, US or state route; the rest were on county roads, city streets and unnamed roads, which are in the state's total but not ranked here.
Where the Wyoming road numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash filed on a numbered interstate, US or state route in Wyoming, read from the road name NHTSA filed, with ramps, frontage and service roads left out. A road gets its own page with 15 or more fatal crashes from 2022 to 2024. The full method.