ZIP 20910 recorded 223 fire and hazmat incidents in 2025, 1,260 across 2021–2025. Primary county: Montgomery County, MD.
1,260 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 256 | |
| 2022 | 263 | |
| 2023 | 278 | |
| 2024 | 240 | |
| 2025 | 223 |
Jun peaks. Oct dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 20910 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Hazardous condition, other | 287 | 22.8% | |
| 2 | Gas leak (natural gas or LPG) | 275 | 21.8% | |
| 3 | Power line down | 103 | 8.2% | |
| 4 | Electrical wiring/equipment problem, other | 76 | 6.0% | |
| 5 | Cooking fire, confined to container | 71 | 5.6% |
For the 6 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 20910 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Cooking area, kitchen | 88 | 34.1% | |
| 2 | Engine area, running gear, wheel area | 29 | 11.2% | |
| 3 | Other | 16 | 6.2% | |
| 4 | Outside area, other | 15 | 5.8% | |
| 5 | Undetermined | 12 | 4.7% | |
| 6 | Highway, parking lot, street: on or near | 11 | 4.3% | |
| 7 | Chute/container - trash, rubbish, waste | 9 | 3.5% | |
| 8 | Function area, other | 6 | 2.3% | |
| 9 | All other areas | 72 | 27.9% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 82 | 31.8% | |
| 2 | Heat from powered equipment, other | 30 | 11.6% | |
| 3 | Radiated, conducted heat from operating equipment | 28 | 10.9% | |
| 4 | Hot or smoldering object, other | 26 | 10.1% | |
| 5 | Heat source: other | 16 | 6.2% | |
| 6 | Spark, ember or flame from operating equipment | 14 | 5.4% | |
| 7 | Arcing | 11 | 4.3% | |
| 8 | Hot ember or ash | 8 | 3.1% | |
| 9 | All other sources | 43 | 16.7% |
Largest single-incident losses in ZIP 20910 across 2021–2025. These 8 fires alone account for 443% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $500,000 | Building fires | 2022 | Major |
| 2 | $250,000 | Building fires | 2023 | Major |
| 3 | $200,000 | Building fires | 2024 | Significant |
| 4 | $100,000 | Building fires | 2021 | Significant |
| 5 | $100,000 | Building fires | 2023 | Significant |
| 6 | $100,000 | Building fires | 2024 | Significant |
| 7 | $100,000 | Road freight or transport vehicle fire | 2024 | Significant |
| 8 | $100,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 20910.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Silver Spring | 1,230 | |
| 2 | Takoma Park | 12 | |
| 3 | Chevy Chase | 8 | |
| 4 | Kensington | 4 | |
| 5 | Potomac | 2 |
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 — 1,260 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.