ZIP 20833 recorded 40 fire and hazmat incidents in 2025, 148 across 2021–2025. Primary county: Montgomery County, MD.
148 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 24 | |
| 2022 | 25 | |
| 2023 | 29 | |
| 2024 | 30 | |
| 2025 | 40 |
Mar peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 20833 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 35 | 23.6% | |
| 2 | Gas leak (natural gas or LPG) | 29 | 19.6% | |
| 3 | Hazardous condition, other | 14 | 9.5% | |
| 4 | Electrical wiring/equipment problem, other | 12 | 8.1% | |
| 5 | Building fires | 7 | 4.7% |
For the 2 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 20833 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 4 | 13.3% | |
| 2 | Outside area, other | 4 | 13.3% | |
| 3 | Undetermined | 4 | 13.3% | |
| 4 | Bathroom, checkroom, lavatory, locker room | 3 | 10.0% | |
| 5 | Wildland, woods | 3 | 10.0% | |
| 6 | Other | 2 | 6.7% | |
| 7 | Function area, other | 2 | 6.7% | |
| 8 | Cooking area, kitchen | 2 | 6.7% | |
| 9 | All other areas | 6 | 20.0% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 8 | 26.7% | |
| 2 | Arcing | 6 | 20.0% | |
| 3 | Heat from powered equipment, other | 3 | 10.0% | |
| 4 | Hot ember or ash | 3 | 10.0% | |
| 5 | Radiated, conducted heat from operating equipment | 2 | 6.7% | |
| 6 | Hot or smoldering object, other | 2 | 6.7% | |
| 7 | Heat source: other | 1 | 3.3% | |
| 8 | Spark, ember or flame from operating equipment | 1 | 3.3% | |
| 9 | All other sources | 4 | 13.3% |
Largest single-incident losses in ZIP 20833 across 2021–2025. These 8 fires alone account for 125% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $500,000 | Building fires | 2025 | Major |
| 2 | $60,000 | Road freight or transport vehicle fire | 2025 | Significant |
| 3 | $50,000 | Building fires | 2022 | Significant |
| 4 | $40,000 | Building fires | 2024 | Significant |
| 5 | $28,000 | Passenger vehicle fire | 2022 | Significant |
| 6 | $15,000 | Fires in structures other than in a building | 2024 | Significant |
| 7 | $5,000 | Building fires | 2021 | Significant |
| 8 | $2,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 20833.
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 — 148 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.