ZIP 21639 recorded 53 fire and hazmat incidents in 2025, 243 across 2021–2025. Primary county: Caroline County, MD. FEMA NRI rates wildfire risk here as High.
243 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 30 | |
| 2022 | 18 | |
| 2023 | 44 | |
| 2024 | 98 | |
| 2025 | 53 |
Apr peaks. Mar dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 21639 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 92 | 37.9% | |
| 2 | Power line down | 17 | 7.0% | |
| 3 | Aircraft standby | 17 | 7.0% | |
| 4 | Brush, or brush and grass mixture fire | 13 | 5.3% | |
| 5 | Passenger vehicle fire | 12 | 4.9% |
For the 29 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 21639 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 18 | 24.3% | |
| 2 | Outside area, other | 13 | 17.6% | |
| 3 | Engine area, running gear, wheel area | 6 | 8.1% | |
| 4 | Open area - outside; included are farmland, field | 6 | 8.1% | |
| 5 | Operator/passenger area of transportation equip. | 4 | 5.4% | |
| 6 | Other | 3 | 4.1% | |
| 7 | Structural area, other | 3 | 4.1% | |
| 8 | Wildland, woods | 3 | 4.1% | |
| 9 | All other areas | 18 | 24.3% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 37 | 50.0% | |
| 2 | Arcing | 8 | 10.8% | |
| 3 | Hot or smoldering object, other | 6 | 8.1% | |
| 4 | Heat from other open flame or smoking materials | 6 | 8.1% | |
| 5 | Heat from powered equipment, other | 4 | 5.4% | |
| 6 | Spark, ember or flame from operating equipment | 4 | 5.4% | |
| 7 | Heat, spark from friction | 2 | 2.7% | |
| 8 | Flying brand, ember, spark | 2 | 2.7% | |
| 9 | All other sources | 5 | 6.8% |
Largest single-incident losses in ZIP 21639 across 2021–2025. These 8 fires alone account for 109% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $15,000,000 | Building fires | 2025 | Catastrophic |
| 2 | $1,100,000 | Building fires | 2025 | Major |
| 3 | $500,000 | Cultivated grain or crop fire | 2023 | Major |
| 4 | $500,000 | Building fires | 2024 | Major |
| 5 | $300,000 | Building fires | 2024 | Major |
| 6 | $150,000 | Building fires | 2024 | Significant |
| 7 | $25,000 | Building fires | 2024 | Significant |
| 8 | $20,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 21639.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Greensboro | 243 |
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 — 243 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.