In 2025, fire departments serving Washtenaw County responded to 2,615 fire and hazmat incidents — including a single $1.0M property loss. FEMA NRI rates wildfire risk here as Moderate.
Gas leak (natural gas or LPG) lead by count. Top five categories make up about 53% of all calls.
Apr peaks. Dec dips.
14,868 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 2,678 | |
| 2022 | 2,640 | |
| 2023 | 4,529 | |
| 2024 | 2,406 | |
| 2025 | 2,615 |
For the 319 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Washtenaw County during 2025. These 10 fires alone account for 44% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Ann Arbor | Building fires | Major |
| 2 | $1,000,000 | Superior | Building fires | Major |
| 3 | $750,000 | Ann Arbor | Building fires | Major |
| 4 | $700,000 | Salem Township | Building fires | Major |
| 5 | $600,000 | Ann Arbor | Building fires | Major |
| 6 | $600,000 | Ann Arbor | Building fires | Major |
| 7 | $500,000 | Ypsilanti | Building fires | Major |
| 8 | $500,000 | Saline | Building fires | Major |
| 9 | $400,000 | WHITMORE LAKE | Building fires | Major |
| 10 | $400,000 | WHITMORE LAKE | Fire, other | Major |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 26161.
| City | Population | |
|---|---|---|
| Ann Arbor | 122,216 | View › |
| Ypsilanti | 20,204 | View › |
| Saline | 8,973 | View › |
| Whitmore Lake | 7,911 | View › |
| Chelsea | 5,440 | View › |
| Dexter | 4,505 | View › |
| Manchester | 2,261 | View › |
| Barton Hills | 444 | View › |
| Notten | 0 | View › |
| Whittaker | 0 | View › |
| Bridgewater | 0 | View › |
| Sylvan Center | 0 | View › |
15 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 | Brittle | 2021 | USFS | 5,666 |
| 2 | 21-SLBE Lasso Loop burn | 2021 | NPS | 577 |
| 3 | 21-SLBE Peterson | 2021 | NPS | 512 |
| 4 | 21-SLBE Otter Creek burn | 2021 | NPS | 506 |
| 5 | Horn | 2021 | NPS | 485 |
| 6 | Unhappy Camper | 2015 | USFS | 471 |
| 7 | 21-SLBE Bass Lake burn | 2021 | NPS | 405 |
| 8 | Good Harbor Trail RX | 2023 | NPS | 342 |
| 9 | Summit Lake | 2024 | USFS | 327 |
| 10 | MISNR-FY19-RX-Red Pine Natural Area | 2019 | FWS | 172 |
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.