In 2025, fire departments serving Trinity County responded to 129 fire and hazmat incidents — including a single $401K property loss. FEMA NRI rates wildfire risk here as Very High.
Forest, woods or wildland fire lead by count. Top five categories make up about 54% of all calls.
May peaks. Feb dips.
607 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 104 | |
| 2022 | 106 | |
| 2023 | 152 | |
| 2024 | 116 | |
| 2025 | 129 |
For the 10 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Trinity County during 2025. These 10 fires alone account for 98% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $401,000 | Weaverville | Building fires | Major |
| 2 | $200,000 | Hayfork | Building fires | Significant |
| 3 | $100,000 | DOUGLASCTY | Brush, or brush and grass mixture fire | Significant |
| 4 | $40,000 | Weaverville | Building fires | Significant |
| 5 | $28,000 | Weaverville | Passenger vehicle fire | Significant |
| 6 | $25,000 | Lewiston | Forest, woods or wildland fire | Significant |
| 7 | $16,000 | Weaverville | Mobile property (vehicle) fire, other | Significant |
| 8 | $8,000 | DOUGLASCTY | Grass fire | Significant |
| 9 | $5,000 | Weaverville | Building fires | Significant |
| 10 | $5,000 | Weaverville | Fires in structures other than in a building | Significant |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 06105.
| City | Population | |
|---|---|---|
| Weaverville | 3,582 | View › |
| Hayfork | 3,227 | View › |
| Lewiston | 2,218 | View › |
| Junction City | 1,195 | View › |
| Douglas City | 1,103 | View › |
| Trinity Village | 580 | View › |
| Salyer | 495 | View › |
| Hyampom | 328 | View › |
| Mad River | 322 | View › |
| Coffee Creek | 278 | View › |
| Trinity Center | 250 | View › |
| Burnt Ranch | 228 | View › |
8 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.