ZIP 21401 recorded 342 fire and hazmat incidents in 2025, 1,655 across 2021–2025. Primary county: Anne Arundel County, MD.
1,655 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 86 | |
| 2022 | 350 | |
| 2023 | 425 | |
| 2024 | 452 | |
| 2025 | 342 |
Aug peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 21401 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 378 | 22.8% | |
| 2 | Electrical wiring/equipment problem, other | 167 | 10.1% | |
| 3 | Building fires | 117 | 7.1% | |
| 4 | Cooking fire, confined to container | 104 | 6.3% | |
| 5 | Arcing, shorted electrical equipment | 87 | 5.3% |
For the 39 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 21401 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 62 | 21.0% | |
| 2 | Engine area, running gear, wheel area | 37 | 12.5% | |
| 3 | Cooking area, kitchen | 27 | 9.2% | |
| 4 | Highway, parking lot, street: on or near | 23 | 7.8% | |
| 5 | Undetermined | 23 | 7.8% | |
| 6 | Wildland, woods | 17 | 5.8% | |
| 7 | Vehicle area, other | 15 | 5.1% | |
| 8 | Common room, den, family room, living room, lounge | 9 | 3.1% | |
| 9 | All other areas | 82 | 27.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 138 | 46.8% | |
| 2 | Arcing | 25 | 8.5% | |
| 3 | Heat from powered equipment, other | 23 | 7.8% | |
| 4 | Heat source: other | 16 | 5.4% | |
| 5 | Hot ember or ash | 15 | 5.1% | |
| 6 | Cigarette | 13 | 4.4% | |
| 7 | Radiated, conducted heat from operating equipment | 12 | 4.1% | |
| 8 | Heat from other open flame or smoking materials | 7 | 2.4% | |
| 9 | All other sources | 46 | 15.6% |
Largest single-incident losses in ZIP 21401 across 2021–2025. These 8 fires alone account for 220% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $750,000 | Building fires | 2025 | Major |
| 2 | $682,000 | Building fires | 2024 | Major |
| 3 | $400,000 | Building fires | 2024 | Major |
| 4 | $300,000 | Building fires | 2023 | Major |
| 5 | $200,000 | Building fires | 2024 | Significant |
| 6 | $200,000 | Building fires | 2024 | Significant |
| 7 | $200,000 | Building fires | 2025 | Significant |
| 8 | $200,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 21401.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Annapolis | 1,655 |
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 — 1,655 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.