ZIP 20660 is served primarily by St. Mary's County, MD — including California. ZIP-level data is sparse — showing the St. Mary's County aggregate. FEMA NRI rates wildfire risk here as Moderate.
Mar peaks. Dec dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 243 | 23.1% | |
| 2 | Gas leak (natural gas or LPG) | 200 | 19.0% | |
| 3 | Aircraft standby | 136 | 12.9% | |
| 4 | Brush, or brush and grass mixture fire | 44 | 4.2% | |
| 5 | Carbon monoxide incident | 42 | 4.0% |
9 cities sit in St. Mary's County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | California | 13,635 | 155 | 27 | B |
| 2 | Lexington Park | 13,537 | 226 | 46 | C |
| 3 | Wildewood | 7,436 | 0 | 0 | — |
| 4 | Leonardtown | 4,586 | 166 | 51 | C |
| 5 | Golden Beach | 3,933 | 1 | 1 | A+ |
| 6 | Mechanicsville | 1,783 | 95 | 43 | C- |
| 7 | Charlotte Hall | 1,410 | 46 | 7 | D |
| 8 | Callaway | 1,216 | 19 | 3 | B- |
| 9 | Piney Point | 1,033 | 13 | 5 | B- |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
This ZIP doesn't have enough NFIRS coverage on its own (under 10 reported incidents across 2021–2025) to publish ZIP-level statistics, so we're showing the St. Mary's County aggregate above. NFIRS reporting is voluntary and many rural ZIPs roll up to broader county totals. The ZIP-to-county mapping uses SimpleMaps' uscities.zips dataset.