ZIP 20815 recorded 106 fire and hazmat incidents in 2025, 529 across 2021–2025. Primary county: Montgomery County, MD.
529 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 97 | |
| 2022 | 135 | |
| 2023 | 94 | |
| 2024 | 97 | |
| 2025 | 106 |
Jul peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 20815 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 119 | 22.5% | |
| 2 | Power line down | 90 | 17.0% | |
| 3 | Hazardous condition, other | 75 | 14.2% | |
| 4 | Carbon monoxide incident | 63 | 11.9% | |
| 5 | Electrical wiring/equipment problem, other | 31 | 5.9% |
For the 2 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 20815 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Cooking area, kitchen | 16 | 21.6% | |
| 2 | Other | 8 | 10.8% | |
| 3 | Engine area, running gear, wheel area | 7 | 9.5% | |
| 4 | Function area, other | 5 | 6.8% | |
| 5 | Highway, parking lot, street: on or near | 4 | 5.4% | |
| 6 | Chute/container - trash, rubbish, waste | 3 | 4.1% | |
| 7 | Courtyard, patio, porch, terrace | 3 | 4.1% | |
| 8 | Common room, den, family room, living room, lounge | 2 | 2.7% | |
| 9 | All other areas | 26 | 35.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 20 | 27.0% | |
| 2 | Heat from powered equipment, other | 9 | 12.2% | |
| 3 | Arcing | 9 | 12.2% | |
| 4 | Radiated, conducted heat from operating equipment | 7 | 9.5% | |
| 5 | Heat source: other | 5 | 6.8% | |
| 6 | Hot or smoldering object, other | 5 | 6.8% | |
| 7 | Hot ember or ash | 4 | 5.4% | |
| 8 | Heat from direct flame, convection currents | 3 | 4.1% | |
| 9 | All other sources | 12 | 16.2% |
Largest single-incident losses in ZIP 20815 across 2021–2025. These 8 fires alone account for 4577% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $100,000 | Building fires | 2021 | Significant |
| 2 | $100,000 | Building fires | 2022 | Significant |
| 3 | $100,000 | Building fires | 2022 | Significant |
| 4 | $100,000 | Building fires | 2022 | Significant |
| 5 | $75,000 | Building fires | 2021 | Significant |
| 6 | $50,000 | Mobile property (vehicle) fire, other | 2021 | Significant |
| 7 | $45,000 | Building fires | 2021 | Significant |
| 8 | $25,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 20815.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Chevy Chase | 509 | |
| 2 | Bethesda | 10 | |
| 3 | Kensington | 4 | |
| 4 | Silver Spring | 3 | |
| 5 | Gaithersburg | 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 — 529 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.