ZIP 20818 recorded 5 fire and hazmat incidents in 2025, 32 across 2021–2025. Primary county: Montgomery County, MD.
32 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 7 | |
| 2022 | 6 | |
| 2023 | 5 | |
| 2024 | 9 | |
| 2025 | 5 |
Mar peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 20818 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 9 | 28.1% | |
| 2 | Hazardous condition, other | 4 | 12.5% | |
| 3 | Electrical wiring/equipment problem, other | 4 | 12.5% | |
| 4 | Carbon monoxide incident | 3 | 9.4% | |
| 5 | Power line down | 3 | 9.4% |
For the 0 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 20818 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Other | 1 | 33.3% | |
| 2 | Structural area, other | 1 | 33.3% | |
| 3 | Wildland, woods | 1 | 33.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Arcing | 1 | 33.3% | |
| 2 | Match | 1 | 33.3% | |
| 3 | Conducted heat from another fire | 1 | 33.3% |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 20818.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Cabin John | 27 | |
| 2 | Bethesda | 5 |
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 — 32 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.