ZIP 21794 recorded 14 fire and hazmat incidents in 2025, 60 across 2021–2025. Primary county: Howard County, MD.
60 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 12 | |
| 2022 | 5 | |
| 2023 | 20 | |
| 2024 | 9 | |
| 2025 | 14 |
Jul peaks. Oct dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 21794 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Passenger vehicle fire | 5 | 8.3% | |
| 2 | Brush, or brush and grass mixture fire | 5 | 8.3% | |
| 3 | Gasoline or other flammable liquid spill | 5 | 8.3% | |
| 4 | Carbon monoxide incident | 5 | 8.3% | |
| 5 | Arcing, shorted electrical equipment | 5 | 8.3% |
For the 0 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 21794 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 4 | 28.6% | |
| 2 | Undetermined | 3 | 21.4% | |
| 3 | Other | 2 | 14.3% | |
| 4 | Vehicle area, other | 1 | 7.1% | |
| 5 | Outside area, other | 1 | 7.1% | |
| 6 | Highway, parking lot, street: on or near | 1 | 7.1% | |
| 7 | Open area - outside; included are farmland, field | 1 | 7.1% | |
| 8 | Wildland, woods | 1 | 7.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 6 | 42.9% | |
| 2 | Hot or smoldering object, other | 2 | 14.3% | |
| 3 | Heat, spark from friction | 2 | 14.3% | |
| 4 | Heat from powered equipment, other | 1 | 7.1% | |
| 5 | Hot ember or ash | 1 | 7.1% | |
| 6 | Conducted heat from another fire | 1 | 7.1% | |
| 7 | Multiple heat sources including multiple ignitions | 1 | 7.1% |
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 — 60 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.