In 2025, fire departments serving Salt Lake County responded to 5,480 fire and hazmat incidents — including a single $20.0M property loss. FEMA NRI rates wildfire risk here as Very High.
Gas leak (natural gas or LPG) lead by count. Top five categories make up about 41% of all calls.
Jul peaks. Dec dips.
27,345 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 5,035 | |
| 2022 | 5,682 | |
| 2023 | 5,596 | |
| 2024 | 5,552 | |
| 2025 | 5,480 |
For the 584 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Salt Lake County during 2025. These 10 fires alone account for 56% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $20,000,000 | MILLCREEK | Building fires | Catastrophic |
| 2 | $2,500,000 | KEARNS | Building fires | Major |
| 3 | $2,500,000 | HERRIMAN | Building fires | Major |
| 4 | $2,000,000 | Salt Lake City | Building fires | Major |
| 5 | $1,200,000 | HOLLADAY | Building fires | Major |
| 6 | $1,000,000 | Salt Lake City | Building fires | Major |
| 7 | $1,000,000 | West Jordan | Building fires | Major |
| 8 | $1,000,000 | West Jordan | Building fires | Major |
| 9 | $1,000,000 | West Jordan | Building fires | Major |
| 10 | $1,000,000 | West Jordan | Building fires | Major |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 49035.
| City | Population | |
|---|---|---|
| Salt Lake City | 201,269 | View › |
| West Valley City | 138,868 | View › |
| West Jordan | 116,383 | View › |
| Sandy | 95,635 | View › |
| South Jordan | 78,118 | View › |
| Millcreek | 63,520 | View › |
| Taylorsville | 59,729 | View › |
| Herriman | 55,301 | View › |
| Draper | 50,635 | View › |
| Murray | 50,041 | View › |
| Riverton | 44,864 | View › |
| Kearns | 36,862 | View › |
12 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 | Milford Flat | 2007 | USFS | 337,676 |
| 2 | Milford Flat | 2007 | BLM | 337,676 |
| 3 | Leamington Complex | 1996 | USFS | 157,943 |
| 4 | Leamington Complex | 1996 | USFS | 157,943 |
| 5 | Clay Springs | 2012 | USFS | 107,766 |
| 6 | Clay Springs | 2012 | BLM | 107,766 |
| 7 | Pole Creek | 2018 | BLM | 101,423 |
| 8 | PHINNEY LAKE | 2020 | USFS | 91,320 |
| 9 | Diamond Creek | 2002 | BLM | 88,420 |
| 10 | EAST FORK | 2020 | USFS | 87,067 |
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.