In 2025, fire departments serving Nassau County responded to 4,325 fire and hazmat incidents — including a single $4.0M property loss. FEMA NRI rates wildfire risk here as Moderate.
Cooking fire, confined to container lead by count. Top five categories make up about 66% of all calls.
Oct peaks. Feb dips.
22,720 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 3,265 | |
| 2022 | 4,845 | |
| 2023 | 5,967 | |
| 2024 | 4,318 | |
| 2025 | 4,325 |
For the 206 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Nassau County during 2025. These 10 fires alone account for 90% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $4,000,000 | FRANKLIN SQUARE | Building fires | Major |
| 2 | $1,000,000 | ROSLYN HEIGHTS | Building fires | Major |
| 3 | $750,000 | VALLEY STREAM | Building fires | Major |
| 4 | $600,000 | SEAFORD | Building fires | Major |
| 5 | $600,000 | SYOSSET | Building fires | Major |
| 6 | $500,000 | NORTH MASSAPEQUA | Building fires | Major |
| 7 | $500,000 | OCEANSIDE | Building fires | Major |
| 8 | $500,000 | WANTAGH | Building fires | Major |
| 9 | $350,000 | OCEANSIDE | Building fires | Major |
| 10 | $250,000 | OCEANSIDE | Building fires | Major |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 36059.
| City | Population | |
|---|---|---|
| Hempstead | 789,763 | View › |
| Oyster Bay | 299,958 | View › |
| North Hempstead | 236,573 | View › |
| Levittown | 50,804 | View › |
| Freeport | 44,210 | View › |
| Hicksville | 44,084 | View › |
| Valley Stream | 40,288 | View › |
| Elmont | 37,866 | View › |
| East Meadow | 36,856 | View › |
| Long Beach | 34,734 | View › |
| Baldwin | 33,776 | View › |
| Uniondale | 33,192 | View › |
Top 10 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).
| # | Name | Year | Agency | Acres |
|---|---|---|---|---|
| 1 | Great Kills Blowup | 2010 | NPS | 143 |
| 2 | GK3 | 1996 | NPS | 98 |
| 3 | NYIRR-FY19-RX-J Units | 2019 | FWS | 81 |
| 4 | GK06-01 | 2006 | NPS | 60 |
| 5 | DRIFTFENCE | 2001 | NPS | 58 |
| 6 | north40 | 1997 | NPS | 51 |
| 7 | HugeFire | 1994 | NPS | 46 |
| 8 | GOLF | 2006 | NPS | 45 |
| 9 | GRKILLS002 | 1999 | NPS | 41 |
| 10 | Spring Creek 1 | 2014 | NPS | 39 |
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.