ZIP 17509 recorded 38 fire and hazmat incidents in 2025, 215 across 2021–2025. Primary county: Lancaster County, PA.
215 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 32 | |
| 2022 | 60 | |
| 2023 | 51 | |
| 2024 | 34 | |
| 2025 | 38 |
Mar peaks. Oct dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 17509 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 77 | 35.8% | |
| 2 | Fire, other | 28 | 13.0% | |
| 3 | Power line down | 17 | 7.9% | |
| 4 | Gas leak (natural gas or LPG) | 15 | 7.0% | |
| 5 | Carbon monoxide incident | 11 | 5.1% |
For the 16 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 17509 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 6 | 22.2% | |
| 2 | Open area - outside; included are farmland, field | 5 | 18.5% | |
| 3 | Other | 3 | 11.1% | |
| 4 | Cooking area, kitchen | 3 | 11.1% | |
| 5 | Wildland, woods | 3 | 11.1% | |
| 6 | Duct: hvac, cable, exhaust, heating, or AC | 1 | 3.7% | |
| 7 | Equipment or service area, other | 1 | 3.7% | |
| 8 | Heating room or area, water heater area | 1 | 3.7% | |
| 9 | All other areas | 4 | 14.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Hot ember or ash | 6 | 22.2% | |
| 2 | Match | 4 | 14.8% | |
| 3 | Radiated, conducted heat from operating equipment | 3 | 11.1% | |
| 4 | Undetermined | 3 | 11.1% | |
| 5 | Spark, ember or flame from operating equipment | 2 | 7.4% | |
| 6 | Arcing | 2 | 7.4% | |
| 7 | Heat from other open flame or smoking materials | 2 | 7.4% | |
| 8 | Heat source: other | 1 | 3.7% | |
| 9 | All other sources | 4 | 14.8% |
Largest single-incident losses in ZIP 17509 across 2021–2025. These 4 fires alone account for 0% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $50,000 | Building fires | 2022 | Significant |
| 2 | $10,100 | Building fires | 2021 | Significant |
| 3 | $2,000 | Building fires | 2023 | Significant |
| 4 | $1,500 | Passenger vehicle fire | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 17509.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Christiana | 116 | |
| 2 | Bart | 1 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Chester County | PA | 0.50 | FIPS 42029 |
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 — 215 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.