ZIP 20191 recorded 74 fire and hazmat incidents in 2025, 353 across 2021–2025. Primary county: Fairfax County, VA.
353 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 69 | |
| 2022 | 35 | |
| 2023 | 69 | |
| 2024 | 106 | |
| 2025 | 74 |
Jul peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 20191 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 113 | 32.0% | |
| 2 | Special outside fire, other | 29 | 8.2% | |
| 3 | Building fires | 25 | 7.1% | |
| 4 | Carbon monoxide incident | 19 | 5.4% | |
| 5 | Power line down | 17 | 4.8% |
For the 5 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 20191 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 15 | 15.3% | |
| 2 | Wildland, woods | 11 | 11.2% | |
| 3 | Undetermined | 11 | 11.2% | |
| 4 | Cooking area, kitchen | 10 | 10.2% | |
| 5 | Engine area, running gear, wheel area | 10 | 10.2% | |
| 6 | Bedroom - < 5 persons; included are jail or prison | 4 | 4.1% | |
| 7 | Cargo/trunk area - all vehicles | 4 | 4.1% | |
| 8 | Courtyard, patio, porch, terrace | 4 | 4.1% | |
| 9 | All other areas | 29 | 29.6% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 32 | 32.7% | |
| 2 | Heat source: other | 12 | 12.2% | |
| 3 | Arcing | 11 | 11.2% | |
| 4 | Hot ember or ash | 6 | 6.1% | |
| 5 | Heat from powered equipment, other | 5 | 5.1% | |
| 6 | Radiated, conducted heat from operating equipment | 5 | 5.1% | |
| 7 | Hot or smoldering object, other | 4 | 4.1% | |
| 8 | Cigarette | 4 | 4.1% | |
| 9 | All other sources | 19 | 19.4% |
Largest single-incident losses in ZIP 20191 across 2021–2025. These 8 fires alone account for 261% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $248,340 | Building fires | 2023 | Significant |
| 2 | $210,000 | Building fires | 2025 | Significant |
| 3 | $150,000 | Fires in structures other than in a building | 2023 | Significant |
| 4 | $137,694 | Building fires | 2024 | Significant |
| 5 | $95,950 | Building fires | 2025 | Significant |
| 6 | $75,480 | Building fires | 2023 | Significant |
| 7 | $55,527 | Building fires | 2025 | Significant |
| 8 | $50,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 20191.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Reston | 264 | |
| 2 | Herndon | 87 | |
| 3 | Nokesville | 1 | |
| 4 | 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 — 353 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.