ZIP 22101 recorded 117 fire and hazmat incidents in 2025, 599 across 2021–2025. Primary county: Fairfax County, VA.
599 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 136 | |
| 2022 | 63 | |
| 2023 | 127 | |
| 2024 | 156 | |
| 2025 | 117 |
Jul peaks. Nov dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 22101 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 172 | 28.7% | |
| 2 | Gas leak (natural gas or LPG) | 138 | 23.0% | |
| 3 | Special outside fire, other | 36 | 6.0% | |
| 4 | Electrical wiring/equipment problem, other | 34 | 5.7% | |
| 5 | Arcing, shorted electrical equipment | 34 | 5.7% |
For the 6 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 22101 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 30 | 25.4% | |
| 2 | Engine area, running gear, wheel area | 12 | 10.2% | |
| 3 | Undetermined | 11 | 9.3% | |
| 4 | Open area - outside; included are farmland, field | 8 | 6.8% | |
| 5 | Highway, parking lot, street: on or near | 7 | 5.9% | |
| 6 | Wildland, woods | 6 | 5.1% | |
| 7 | Cooking area, kitchen | 4 | 3.4% | |
| 8 | Exterior balcony, unenclosed porch | 4 | 3.4% | |
| 9 | All other areas | 36 | 30.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 38 | 32.2% | |
| 2 | Arcing | 13 | 11.0% | |
| 3 | Heat from powered equipment, other | 9 | 7.6% | |
| 4 | Heat source: other | 8 | 6.8% | |
| 5 | Radiated, conducted heat from operating equipment | 7 | 5.9% | |
| 6 | Hot ember or ash | 7 | 5.9% | |
| 7 | Hot or smoldering object, other | 6 | 5.1% | |
| 8 | Cigarette | 5 | 4.2% | |
| 9 | All other sources | 25 | 21.2% |
Largest single-incident losses in ZIP 22101 across 2021–2025. These 8 fires alone account for 422% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $400,000 | Building fires | 2023 | Major |
| 2 | $350,000 | Off-road vehicle or heavy equipment fire | 2024 | Major |
| 3 | $335,796 | Building fires | 2023 | Major |
| 4 | $300,000 | Passenger vehicle fire | 2024 | Major |
| 5 | $268,998 | Building fires | 2025 | Major |
| 6 | $198,730 | Building fires | 2025 | Significant |
| 7 | $125,000 | Building fires | 2023 | Significant |
| 8 | $70,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 22101.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | McLean | 593 | |
| 2 | Arlington | 1 | |
| 3 | Fairfax | 1 | |
| 4 | Gaithersburg | 1 | |
| 5 | Woodbridge | 1 |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
NFIRS reports each fire incident with a 5-digit address ZIP. We aggregate those rows directly to produce ZIP-level totals — 599 incidents in this ZIP across 2021–2025. Building-fire breakdowns (Area of Origin, Heat Source, ignition cause) only count fires investigators classified beyond the basic incident report. Because NFIRS reporting is voluntary, totals are a strong indicator rather than a complete census.