ZIP 21017 recorded 43 fire and hazmat incidents in 2025, 229 across 2021–2025. Primary county: Harford County, MD.
229 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 48 | |
| 2022 | 46 | |
| 2023 | 39 | |
| 2024 | 53 | |
| 2025 | 43 |
Nov peaks. Mar dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 21017 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 49 | 21.4% | |
| 2 | Gas leak (natural gas or LPG) | 31 | 13.5% | |
| 3 | Electrical wiring/equipment problem, other | 20 | 8.7% | |
| 4 | Hazardous condition, other | 18 | 7.9% | |
| 5 | Brush, or brush and grass mixture fire | 15 | 6.6% |
For the 2 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 21017 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 15 | 41.7% | |
| 2 | Other | 4 | 11.1% | |
| 3 | Engine area, running gear, wheel area | 3 | 8.3% | |
| 4 | Highway, parking lot, street: on or near | 3 | 8.3% | |
| 5 | Storage room, area, tank, or bin | 2 | 5.6% | |
| 6 | Outside area, other | 2 | 5.6% | |
| 7 | Laundry area, wash house (laundry) | 1 | 2.8% | |
| 8 | Storage area, other | 1 | 2.8% | |
| 9 | All other areas | 5 | 13.9% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 24 | 66.7% | |
| 2 | Heat source: other | 4 | 11.1% | |
| 3 | Heat from powered equipment, other | 2 | 5.6% | |
| 4 | Hot or smoldering object, other | 2 | 5.6% | |
| 5 | Hot ember or ash | 2 | 5.6% | |
| 6 | Spark, ember or flame from operating equipment | 1 | 2.8% | |
| 7 | Arcing | 1 | 2.8% |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 21017.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | North East | 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 — 229 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.