In 2025, fire departments serving Sweetwater County responded to 149 fire and hazmat incidents — including a single $225K property loss. FEMA NRI rates wildfire risk here as High.
Gas leak (natural gas or LPG) lead by count. Top five categories make up about 46% of all calls.
Jun peaks. Oct dips.
1,331 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 331 | |
| 2022 | 305 | |
| 2023 | 296 | |
| 2024 | 250 | |
| 2025 | 149 |
For the 13 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Sweetwater County during 2025. These 10 fires alone account for 98% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $225,000 | Rock Springs | Building fires | Significant |
| 2 | $150,000 | Creston | Outside equipment fire | Significant |
| 3 | $100,000 | Rock Springs | Building fires | Significant |
| 4 | $40,000 | Creston | Passenger vehicle fire | Significant |
| 5 | $20,000 | Rock Springs | Building fires | Significant |
| 6 | $20,000 | Rock Springs | Fire in portable building, fixed location | Significant |
| 7 | $20,000 | Wamsutter | Road freight or transport vehicle fire | Significant |
| 8 | $10,000 | Rock Springs | Road freight or transport vehicle fire | Significant |
| 9 | $10,000 | Wamsutter | Passenger vehicle fire | Significant |
| 10 | $5,000 | Rock Springs | Building fires | Significant |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 56037.
| City | Population | |
|---|---|---|
| Rock Springs | 23,361 | View › |
| Green River | 11,772 | View › |
| North Rock Springs | 2,529 | View › |
| Purple Sage | 546 | View › |
| James Town | 508 | View › |
| Clearview Acres | 495 | View › |
| Wamsutter | 251 | View › |
| Eden | 236 | View › |
| Superior | 220 | View › |
| Farson | 217 | View › |
| Granger | 197 | View › |
| Bairoil | 162 | View › |
7 departments report from this county.
Top 10 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).
| # | Name | Year | Agency | Acres |
|---|---|---|---|---|
| 1 | Clover Mist | 1988 | USFS | 341,291 |
| 2 | CLOVERMIST | 1988 | NPS | 232,190 |
| 3 | Hellroaring | 1988 | USFS | 206,358 |
| 4 | Storm Creek | 1988 | USFS | 206,056 |
| 5 | East Troublesome | 2020 | USFS | 193,693 |
| 6 | Mullen | 2020 | USFS | 176,787 |
| 7 | HUCK | 1988 | NPS | 120,297 |
| 8 | Elk | 2024 | USFS | 98,351 |
| 9 | Pack Trail | 2024 | USFS | 89,929 |
| 10 | MINK | 1988 | NPS | 88,369 |
County-level NFIRS aggregates for 2025, plus 5-year totals across 2021–2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Wildfire risk score (0–100) and Expected Annual Loss come from FEMA's National Risk Index. Drought class is the most recent USDM classification (D0 = abnormally dry through D4 = exceptional drought). Historical fire perimeters are sourced from the NIFC InterAgency Fire Perimeter History.