Fatal crashes in Sweetwater County, Wyoming
In 2024, 5 people died in 5 fatal crashes in Sweetwater County, Wyoming, 75.0% fewer than in 2023. From 2015 to 2024 the county recorded 110 fatal crashes and 121 deaths, the 2nd most of 23 counties in Wyoming.
Deaths in Sweetwater County by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 5 | 5 |
| 2023 | 19 | 20 |
| 2022 | 12 | 13 |
| 2021 | 11 | 12 |
| 2020 | 12 | 14 |
| 2019 | 14 | 17 |
| 2018 | 7 | 7 |
| 2017 | 10 | 12 |
| 2016 | 10 | 10 |
| 2015 | 10 | 11 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
The deadliest roads in Sweetwater County
I-80 had the most fatal crashes of any numbered road in Sweetwater County from 2015 to 2024: 63, with 68 deaths. The 3 roads listed held 72% of all fatal crashes in Sweetwater County from 2015 to 2024; 1 is an interstate, 1 US route, 1 state highway. 78% of the county's fatal crashes were on an interstate, US or state route; the other 22% were on county roads and city streets. Routes are listed from 5 fatal crashes.
| Road | Fatal crashes | Deaths | 2022 to 2024 | ||
|---|---|---|---|---|---|
| 1 | I-80 | 63 | 68 | 22 | |
| 2 | US 191 | 11 | 15 | 3 | no page |
| 3 | State Highway 530 | 5 | 5 | 1 | no page |
Rock Springs had 18% of the county's fatal crashes from 2015 to 2024, 20 of 110.
Cities NHTSA filed, with their fatal crashes from 2015 to 2024: Rock Springs 20, Green River 6. The city is not filed for crashes outside a city.
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen in Sweetwater County
110 fatal crashes in Sweetwater County, Wyoming from 2015 to 2024 have a known time, too few for any one weekday and time of day to stand out. The worst hour is noon to 1 pm; the worst month is August.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 1.8 percent, 2 fatal crashes | 2.7 percent, 3 fatal crashes | 4.5 percent, 5 fatal crashes | 5.5 percent, 6 fatal crashes | 3.6 percent, 4 fatal crashes | 1.8 percent, 2 fatal crashes |
| Mon | 0.9 percent, 1 fatal crash | 1.8 percent, 2 fatal crashes | 5.5 percent, 6 fatal crashes | 2.7 percent, 3 fatal crashes | 2.7 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes |
| Tue | 0.0 percent, 0 fatal crashes | 1.8 percent, 2 fatal crashes | 1.8 percent, 2 fatal crashes | 1.8 percent, 2 fatal crashes | 2.7 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes |
| Wed | 0.0 percent, 0 fatal crashes | 2.7 percent, 3 fatal crashes | 5.5 percent, 6 fatal crashes | 8.2 percent, 9 fatal crashes | 0.9 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes |
| Thu | 1.8 percent, 2 fatal crashes | 2.7 percent, 3 fatal crashes | 2.7 percent, 3 fatal crashes | 3.6 percent, 4 fatal crashes | 3.6 percent, 4 fatal crashes | 1.8 percent, 2 fatal crashes |
| Fri | 3.6 percent, 4 fatal crashes | 0.0 percent, 0 fatal crashes | 2.7 percent, 3 fatal crashes | 1.8 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 2.7 percent, 3 fatal crashes |
| Sat | 0.9 percent, 1 fatal crash | 0.9 percent, 1 fatal crash | 4.5 percent, 5 fatal crashes | 3.6 percent, 4 fatal crashes | 0.9 percent, 1 fatal crash | 2.7 percent, 3 fatal crashes |
By hour
By month
- Jan5.5%
- Feb3.6%
- Mar10.0%
- Apr6.4%
- May4.5%
- Jun9.1%
- Jul12.7%
- Aug15.5%
- Sep9.1%
- Oct5.5%
- Nov10.0%
- Dec8.2%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes in Sweetwater County first hit
The first harmful event was a collision with another vehicle in 35%; a rollover in 31%, a fixed object such as a tree, pole or barrier in 21%, a pedestrian in 3.6%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 38 | 35% |
| Rollover | 34 | 31% |
| Fixed object (tree, pole, barrier, ditch) | 23 | 21% |
| Other | 8 | 7.3% |
| Pedestrian | 4 | 3.6% |
| Cyclist | 2 | 1.8% |
| Parked vehicle | 1 | 0.9% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes in Sweetwater County compare with Wyoming
The largest difference from Wyoming: from 2015 to 2024, 18% of fatal crashes in Sweetwater County were with a drinking driver, against 33% across Wyoming. Shares of fatal crashes from 2015 to 2024, against the share across all of Wyoming. A share is only given over 20 crashes; above or below means more than chance would give on 110 crashes.
| Sweetwater | Wyoming | ||
|---|---|---|---|
| On rural roads | 76% | 81% | about the same as the Wyoming share |
| At or near an intersection | 4.5% | 9.5% | about the same as the Wyoming share |
| In the dark, road unlit | 26% | 33% | about the same as the Wyoming share |
| A drinking driver | 18% | 33% | below the Wyoming share |
| Speeding | 34% | 35% | about the same as the Wyoming share |
| A distracted driver (as recorded) | 8.2% | 9.6% | about the same as the Wyoming share |
| Occupants killed unbelted | 55% | 61% | about the same as the Wyoming share |
| Hit-and-run | 0.0% | 0.8% | about the same as the Wyoming share |
| A motorcycle involved | 14% | 16% | about the same as the Wyoming share |
| Pedestrians among the dead | 6.6% | 5.6% | about the same as the Wyoming share |
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 Sweetwater County, Wyoming
- How many people died in car accidents in Sweetwater County in 2024?
- 5 people died in 5 fatal crashes in Sweetwater County, Wyoming, in 2024, 75.0% fewer than in 2023. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- What is the deadliest road in Sweetwater County?
- I-80 had the most fatal crashes of any numbered road in Sweetwater County from 2015 to 2024: 63, with 68 deaths.
- How many fatal crashes in Sweetwater County involved a drinking driver?
- 20 of 110 fatal crashes in Sweetwater County from 2015 to 2024 involved a driver NHTSA recorded as drinking, 18%, against 33% across Wyoming.
Other counties in Wyoming with a page
All fatal crashes in Wyoming, with every county ranked.
Where the Sweetwater County numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash NHTSA filed in Sweetwater County (county code 37). A fatal crash is one in which someone died within 30 days. The rate per 100,000 uses the Census Bureau's population estimate for the county; it is the only figure here not counted from FARS. Totals from state highway departments and news reports can differ: they count from their own crash reports, often before every death within 30 days is known, while NHTSA's file is checked against death certificates and revised once a year. The full method.
Download every county with a page as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/fatal-crashes/wyoming/sweetwater-county/, from NHTSA FARS (2024 Annual Report File).”