In 2025, fire departments serving Colusa County responded to 333 fire and hazmat incidents — including a single $300K property loss. FEMA NRI rates wildfire risk here as Very High.
Authorized controlled burning lead by count. Top five categories make up about 54% of all calls.
Jun peaks. Dec dips.
1,683 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 359 | |
| 2022 | 336 | |
| 2023 | 296 | |
| 2024 | 359 | |
| 2025 | 333 |
For the 21 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Colusa County during 2025. These 10 fires alone account for 94% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $300,000 | Williams | Fire in mobile home used as fixed residence | Major |
| 2 | $80,000 | Williams | Road freight or transport vehicle fire | Significant |
| 3 | $60,000 | Arbuckle | Building fires | Significant |
| 4 | $30,000 | Williams | Fires in structures other than in a building | Significant |
| 5 | $20,000 | Colusa | Fire, other | Significant |
| 6 | $15,000 | Colusa | Water vehicle fire | Significant |
| 7 | $15,000 | Colusa | Mobile property (vehicle) fire, other | Significant |
| 8 | $13,000 | Colusa | Passenger vehicle fire | Significant |
| 9 | $10,000 | Colusa | Water vehicle fire | Significant |
| 10 | $10,000 | Williams | Brush, or brush and grass mixture fire | Significant |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 06011.
9 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.