In 2025, fire departments serving Mercer County responded to 487 fire and hazmat incidents — including a single $400K property loss. FEMA NRI rates wildfire risk here as High.
Building fires lead by count. Top five categories make up about 55% of all calls.
Mar peaks. Oct dips.
3,284 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 532 | |
| 2022 | 714 | |
| 2023 | 709 | |
| 2024 | 842 | |
| 2025 | 487 |
For the 100 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Mercer County during 2025. These 10 fires alone account for 78% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $400,000 | Bluefield | Building fires | Major |
| 2 | $300,000 | Princeton | Building fires | Major |
| 3 | $190,000 | BLUEFIELD | Building fires | Significant |
| 4 | $175,000 | Princeton | Building fires | Significant |
| 5 | $150,000 | Princeton | Road freight or transport vehicle fire | Significant |
| 6 | $95,000 | Princeton | Building fires | Significant |
| 7 | $90,000 | Bluefield | Building fires | Significant |
| 8 | $80,000 | Princeton | Passenger vehicle fire | Significant |
| 9 | $75,000 | Princeton | Building fires | Significant |
| 10 | $68,500 | Princeton | Building fires | Significant |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 54055.
11 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 | GAULEY MTN | 1991 | NPS | 12,324 |
| 2 | Steep Valley | 2023 | NPS | 2,182 |
| 3 | Dry Hollow Fire | 2019 | USFS | 1,288 |
| 4 | ABRAHAM | 2001 | NPS | 547 |
| 5 | Castle | 2018 | USFS | 427 |
| 6 | Unnamed fire | 1981 | NPS | 412 |
| 7 | Highland | 2024 | NPS | 231 |
| 8 | North | 2017 | USFS | 192 |
| 9 | 947 | 2023 | USFS | 165 |
| 10 | 873122 | 1987 | NPS | 162 |
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.