In 2025, fire departments serving Lyon County responded to 368 fire and hazmat incidents — including a single $250K 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 58% of all calls.
Jan peaks. Nov dips.
1,852 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 224 | |
| 2022 | 280 | |
| 2023 | 450 | |
| 2024 | 530 | |
| 2025 | 368 |
For the 33 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Lyon County during 2025. These 10 fires alone account for 99% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $250,000 | DAYTON | Building fires | Major |
| 2 | $200,000 | Dayton | Building fires | Significant |
| 3 | $100,000 | Smith | Building fires | Significant |
| 4 | $50,000 | Wellington | Fires in structures other than in a building | Significant |
| 5 | $20,000 | Fernley | Fire in motor home, camper, recreational vehicle | Significant |
| 6 | $20,000 | Fernley | Building fires | Significant |
| 7 | $20,000 | WELLINGTON | Brush, or brush and grass mixture fire | Significant |
| 8 | $10,000 | Silver Springs | Passenger vehicle fire | Significant |
| 9 | $5,000 | Silver Springs | Passenger vehicle fire | Significant |
| 10 | $5,000 | Smith | Building fires | Significant |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 32019.
3 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 | Martin | 2018 | BLM | 431,753 |
| 2 | Winters | 2006 | BLM | 238,462 |
| 3 | South Sugarloaf | 2018 | BLM | 233,461 |
| 4 | Roosters Comb | 2017 | BLM | 204,879 |
| 5 | Sadler | 1999 | BLM | 199,181 |
| 6 | WEST FORK | 2007 | BLM | 161,934 |
| 7 | West Fork | 2007 | BLM | 154,973 |
| 8 | Snowstorm | 2017 | BLM | 154,454 |
| 9 | Charleston | 2006 | BLM | 149,245 |
| 10 | Antelope 2 | 1999 | BLM | 140,277 |
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.