In 2025, fire departments serving Napa County responded to 897 fire and hazmat incidents — including a single $500K 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 40% of all calls.
Aug peaks. Jun dips.
4,737 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 781 | |
| 2022 | 907 | |
| 2023 | 1,033 | |
| 2024 | 1,119 | |
| 2025 | 897 |
For the 43 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Napa County during 2025. These 10 fires alone account for 65% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $500,000 | American Canyon | Building fires | Major |
| 2 | $375,000 | NAPA | Building fires | Major |
| 3 | $300,000 | Napa | Building fires | Major |
| 4 | $200,000 | Calistoga | Building or structure weakened or collapsed | Significant |
| 5 | $200,000 | CARNEROS | Fires in structures other than in a building | Significant |
| 6 | $180,000 | City of Calistoga | Building fires | Significant |
| 7 | $150,000 | Napa | Building fires | Significant |
| 8 | $150,000 | Napa | Building fires | Significant |
| 9 | $150,000 | American Canyon | Building fires | Significant |
| 10 | $150,000 | City of Calistoga | Building fires | Significant |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 06055.
| City | Population | |
|---|---|---|
| Napa | 79,233 | View › |
| American Canyon | 21,669 | View › |
| St. Helena | 5,426 | View › |
| Calistoga | 5,191 | View › |
| Yountville | 3,397 | View › |
| Angwin | 2,731 | View › |
| Silverado Resort | 1,012 | View › |
| Deer Park | 835 | View › |
| Moskowite Corner | 146 | View › |
| Rutherford | 115 | View › |
| Rocktram | 0 | View › |
| Lokoya | 0 | View › |
7 departments report from this county.
Top 10 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).
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.