ZIP 21830 recorded 25 fire and hazmat incidents in 2025, 194 across 2021–2025. Primary county: Wicomico County, MD. FEMA NRI rates wildfire risk here as Very High.
194 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 46 | |
| 2022 | 56 | |
| 2023 | 31 | |
| 2024 | 36 | |
| 2025 | 25 |
Feb peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 21830 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 74 | 38.1% | |
| 2 | Power line down | 9 | 4.6% | |
| 3 | Unauthorized burning | 9 | 4.6% | |
| 4 | Gasoline or other flammable liquid spill | 8 | 4.1% | |
| 5 | Electrical wiring/equipment problem, other | 8 | 4.1% |
For the 7 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 21830 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 8 | 21.6% | |
| 2 | Undetermined | 5 | 13.5% | |
| 3 | Bedroom - < 5 persons; included are jail or prison | 4 | 10.8% | |
| 4 | Open area - outside; included are farmland, field | 4 | 10.8% | |
| 5 | Cooking area, kitchen | 2 | 5.4% | |
| 6 | Substructure area or space, crawl space | 2 | 5.4% | |
| 7 | Wall surface: exterior | 2 | 5.4% | |
| 8 | Highway, parking lot, street: on or near | 2 | 5.4% | |
| 9 | All other areas | 8 | 21.6% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 22 | 59.5% | |
| 2 | Radiated, conducted heat from operating equipment | 5 | 13.5% | |
| 3 | Hot ember or ash | 2 | 5.4% | |
| 4 | Match | 2 | 5.4% | |
| 5 | Arcing | 1 | 2.7% | |
| 6 | Molten, hot material | 1 | 2.7% | |
| 7 | Cigarette | 1 | 2.7% | |
| 8 | Lightning | 1 | 2.7% | |
| 9 | All other sources | 2 | 5.4% |
Largest single-incident losses in ZIP 21830 across 2021–2025. These 8 fires alone account for 1951% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $200,000 | Building fires | 2024 | Significant |
| 2 | $175,000 | Building fires | 2024 | Significant |
| 3 | $150,000 | Road freight or transport vehicle fire | 2022 | Significant |
| 4 | $120,000 | Building fires | 2022 | Significant |
| 5 | $60,000 | Passenger vehicle fire | 2022 | Significant |
| 6 | $50,000 | Road freight or transport vehicle fire | 2024 | Significant |
| 7 | $30,000 | Building fires | 2025 | Significant |
| 8 | $15,000 | Building fires | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 21830.
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 — 194 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.