ZIP 18109 recorded 74 fire and hazmat incidents in 2025, 1,222 across 2021–2025. Primary county: Lehigh County, PA.
1,222 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 227 | |
| 2022 | 361 | |
| 2023 | 316 | |
| 2024 | 244 | |
| 2025 | 74 |
Aug peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 18109 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Aircraft standby | 257 | 21.0% | |
| 2 | Gas leak (natural gas or LPG) | 147 | 12.0% | |
| 3 | Hazardous condition, other | 105 | 8.6% | |
| 4 | Power line down | 96 | 7.9% | |
| 5 | Building fires | 81 | 6.6% |
For the 9 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 18109 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 53 | 21.2% | |
| 2 | Outside area, other | 45 | 18.0% | |
| 3 | Cooking area, kitchen | 32 | 12.8% | |
| 4 | Engine area, running gear, wheel area | 24 | 9.6% | |
| 5 | Highway, parking lot, street: on or near | 12 | 4.8% | |
| 6 | Vehicle area, other | 11 | 4.4% | |
| 7 | Open area - outside; included are farmland, field | 11 | 4.4% | |
| 8 | Other | 8 | 3.2% | |
| 9 | All other areas | 54 | 21.6% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 164 | 65.6% | |
| 2 | Radiated, conducted heat from operating equipment | 15 | 6.0% | |
| 3 | Heat source: other | 14 | 5.6% | |
| 4 | Cigarette | 9 | 3.6% | |
| 5 | Arcing | 8 | 3.2% | |
| 6 | Heat from powered equipment, other | 7 | 2.8% | |
| 7 | Hot or smoldering object, other | 6 | 2.4% | |
| 8 | Heat, spark from friction | 5 | 2.0% | |
| 9 | All other sources | 22 | 8.8% |
Largest single-incident losses in ZIP 18109 across 2021–2025. These 4 fires alone account for 0% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $100,000 | Passenger vehicle fire | 2021 | Significant |
| 2 | $40,000 | Building fires | 2022 | Significant |
| 3 | $20,000 | Building fires | 2021 | Significant |
| 4 | $200 | Trash or rubbish fire, contained | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 18109.
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Northampton County | PA | 1.00 | FIPS 42095 |
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 — 1,222 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.