ZIP 20630 recorded 10 fire and hazmat incidents in 2025, 56 across 2021–2025. Primary county: St. Mary's County, MD. FEMA NRI rates wildfire risk here as Moderate.
56 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 4 | |
| 2022 | 11 | |
| 2023 | 9 | |
| 2024 | 22 | |
| 2025 | 10 |
Apr peaks. Jun dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 20630 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 20 | 35.7% | |
| 2 | Authorized controlled burning | 6 | 10.7% | |
| 3 | Forest, woods or wildland fire | 5 | 8.9% | |
| 4 | Brush, or brush and grass mixture fire | 5 | 8.9% | |
| 5 | Gas leak (natural gas or LPG) | 4 | 7.1% |
For the 0 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 20630 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 4 | 44.4% | |
| 2 | Cooking area, kitchen | 1 | 11.1% | |
| 3 | Substructure area or space, crawl space | 1 | 11.1% | |
| 4 | Exterior balcony, unenclosed porch | 1 | 11.1% | |
| 5 | Outside area, other | 1 | 11.1% | |
| 6 | Wildland, woods | 1 | 11.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 5 | 55.6% | |
| 2 | Hot or smoldering object, other | 1 | 11.1% | |
| 3 | Hot ember or ash | 1 | 11.1% | |
| 4 | Heat from other open flame or smoking materials | 1 | 11.1% | |
| 5 | Cigarette | 1 | 11.1% |
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 — 56 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.