In 2025, fire departments serving Mercer County responded to 950 fire and hazmat incidents — including a single $200K property loss.
Building fires lead by count. Top five categories make up about 58% of all calls.
Mar peaks. Dec dips.
6,907 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 1,469 | |
| 2022 | 1,507 | |
| 2023 | 1,736 | |
| 2024 | 1,245 | |
| 2025 | 950 |
For the 235 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 69% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $200,000 | GREENVILLE | Building fires | Significant |
| 2 | $150,000 | SHARON | Building fires | Significant |
| 3 | $150,000 | SHARON | Building fires | Significant |
| 4 | $118,000 | Grove City | Building fires | Significant |
| 5 | $80,000 | Sharon | Building fires | Significant |
| 6 | $75,000 | WEST MIDDLESEX | Building fires | Significant |
| 7 | $75,000 | Greenville | Passenger vehicle fire | Significant |
| 8 | $75,000 | Greenville | Building fires | Significant |
| 9 | $70,000 | GREENVILLE | Building fires | Significant |
| 10 | $50,000 | SHARON | Building fires | Significant |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 42085.
| City | Population | |
|---|---|---|
| Hermitage | 16,216 | View › |
| Sharon | 13,143 | View › |
| Grove City | 7,908 | View › |
| Greenville | 5,568 | View › |
| Farrell | 4,280 | View › |
| Sharpsville | 4,249 | View › |
| West Salem | 3,230 | View › |
| Pymatuning | 3,112 | View › |
| Findley | 2,894 | View › |
| South Pymatuning | 2,645 | View › |
| Lackawannock | 2,353 | View › |
| Coolspring | 2,087 | View › |
9 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 | Hopewell | 2012 | NPS | 812 |
| 2 | Blue Mountain | 2024 | NPS | 577 |
| 3 | River Road | 2023 | USFS | 430 |
| 4 | SNYDER | 1999 | NPS | 374 |
| 5 | Town Line Church | 1984 | USFS | 207 |
| 6 | Little Round Top Munshower | 2021 | NPS | 79 |
| 7 | Sugar Bay | 2023 | USFS | 62 |
| 8 | Spring | 2003 | USFS | 53 |
| 9 | Salmon Creek | 2010 | USFS | 48 |
| 10 | BELLTOWN | 2011 | USFS | 42 |
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.