In 2025, fire departments serving Loudoun County responded to 1,587 fire and hazmat incidents — including a single $700K property loss.
Gas leak (natural gas or LPG) lead by count. Top five categories make up about 55% of all calls.
Mar peaks. Nov dips.
7,377 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 1,170 | |
| 2022 | 1,324 | |
| 2023 | 1,505 | |
| 2024 | 1,791 | |
| 2025 | 1,587 |
For the 63 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Loudoun County during 2025. These 10 fires alone account for 92% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $700,000 | PURCELLVILLE | Building fires | Major |
| 2 | $473,220 | LEESBURG | Building fires | Major |
| 3 | $295,000 | LEESBURG | Building fires | Major |
| 4 | $250,000 | ASHBURN | Building fires | Major |
| 5 | $150,000 | LEESBURG | Mobile property (vehicle) fire, other | Significant |
| 6 | $150,000 | LEESBURG | Mobile property (vehicle) fire, other | Significant |
| 7 | $65,000 | CHANTILLY | Building fires | Significant |
| 8 | $53,000 | STERLING | Building fires | Significant |
| 9 | $50,000 | ASHBURN | Building fires | Significant |
| 10 | $48,000 | STERLING | Building fires | Significant |
Per-capita rates let us compare apples to apples.
12 cities mapped to FIPS 51107.
| City | Population | |
|---|---|---|
| Leesburg | 48,465 | View › |
| Ashburn | 45,479 | View › |
| South Riding | 33,358 | View › |
| Sterling | 31,058 | View › |
| Brambleton | 22,796 | View › |
| Stone Ridge | 16,049 | View › |
| Broadlands | 14,582 | View › |
| Lansdowne | 12,840 | View › |
| Sugarland Run | 12,818 | View › |
| Cascades | 12,542 | View › |
| Lowes Island | 11,265 | View › |
| Loudoun Valley Estates | 10,514 | View › |
14 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 | PINNACLES | 2000 | NPS | 18,055 |
| 2 | Mount Pleasant | 2016 | USFS | 11,210 |
| 3 | Waterfall Mountain | 2024 | USFS | 6,398 |
| 4 | Waites Run | 2024 | USFS | 6,223 |
| 5 | OLD RAG | 2000 | NPS | 6,127 |
| 6 | BIG RUN | 1986 | NPS | 4,696 |
| 7 | FULTZ RUN | 2002 | NPS | 4,194 |
| 8 | Shop Run | 1999 | NPS | 3,229 |
| 9 | Raven Rock | 2016 | USFS | 2,401 |
| 10 | Tye River | 2018 | USFS | 2,057 |
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.