ZIP 21793 recorded 45 fire and hazmat incidents in 2025, 234 across 2021–2025. Primary county: Frederick County, MD.
234 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 52 | |
| 2022 | 40 | |
| 2023 | 49 | |
| 2024 | 48 | |
| 2025 | 45 |
Mar peaks. Apr dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 21793 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 36 | 15.4% | |
| 2 | Outside rubbish, trash or waste fire | 29 | 12.4% | |
| 3 | Power line down | 22 | 9.4% | |
| 4 | Arcing, shorted electrical equipment | 16 | 6.8% | |
| 5 | Building fires | 15 | 6.4% |
For the 5 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 21793 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Vehicle area, other | 5 | 14.7% | |
| 2 | Engine area, running gear, wheel area | 5 | 14.7% | |
| 3 | Undetermined | 5 | 14.7% | |
| 4 | Cooking area, kitchen | 4 | 11.8% | |
| 5 | Vehicle storage area; garage, carport | 2 | 5.9% | |
| 6 | Outside area, other | 2 | 5.9% | |
| 7 | Open area - outside; included are farmland, field | 2 | 5.9% | |
| 8 | Other | 1 | 2.9% | |
| 9 | All other areas | 8 | 23.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 10 | 29.4% | |
| 2 | Heat from powered equipment, other | 7 | 20.6% | |
| 3 | Heat source: other | 4 | 11.8% | |
| 4 | Radiated, conducted heat from operating equipment | 4 | 11.8% | |
| 5 | Arcing | 2 | 5.9% | |
| 6 | Hot or smoldering object, other | 1 | 2.9% | |
| 7 | Fireworks | 1 | 2.9% | |
| 8 | Heat from other open flame or smoking materials | 1 | 2.9% | |
| 9 | All other sources | 4 | 11.8% |
Largest single-incident losses in ZIP 21793 across 2021–2025. These 8 fires alone account for 124% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $400,000 | Building fires | 2025 | Major |
| 2 | $200,000 | Building fires | 2025 | Significant |
| 3 | $70,000 | Passenger vehicle fire | 2022 | Significant |
| 4 | $65,000 | Passenger vehicle fire | 2025 | Significant |
| 5 | $45,000 | Building fires | 2021 | Significant |
| 6 | $20,000 | Passenger vehicle fire | 2022 | Significant |
| 7 | $20,000 | Building fires | 2023 | Significant |
| 8 | $10,000 | Outside rubbish, trash or waste fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 21793.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Walkersville | 227 | |
| 2 | Frederick | 3 | |
| 3 | Myersville | 2 | |
| 4 | Kensington | 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 — 234 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.