ZIP 18031 recorded 101 fire and hazmat incidents in 2025, 499 across 2021–2025. Primary county: Lehigh County, PA.
499 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 97 | |
| 2022 | 97 | |
| 2023 | 102 | |
| 2024 | 102 | |
| 2025 | 101 |
Aug peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 18031 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 121 | 24.2% | |
| 2 | Gas leak (natural gas or LPG) | 66 | 13.2% | |
| 3 | Brush, or brush and grass mixture fire | 34 | 6.8% | |
| 4 | Carbon monoxide incident | 27 | 5.4% | |
| 5 | Passenger vehicle fire | 25 | 5.0% |
For the 23 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 18031 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Cooking area, kitchen | 14 | 16.5% | |
| 2 | Outside area, other | 14 | 16.5% | |
| 3 | Engine area, running gear, wheel area | 13 | 15.3% | |
| 4 | Undetermined | 8 | 9.4% | |
| 5 | Other | 5 | 5.9% | |
| 6 | Open area - outside; included are farmland, field | 5 | 5.9% | |
| 7 | Vehicle area, other | 3 | 3.5% | |
| 8 | Highway, parking lot, street: on or near | 3 | 3.5% | |
| 9 | All other areas | 20 | 23.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 35 | 41.2% | |
| 2 | Heat from powered equipment, other | 10 | 11.8% | |
| 3 | Radiated, conducted heat from operating equipment | 7 | 8.2% | |
| 4 | Heat source: other | 5 | 5.9% | |
| 5 | Arcing | 5 | 5.9% | |
| 6 | Cigarette | 4 | 4.7% | |
| 7 | Hot ember or ash | 3 | 3.5% | |
| 8 | Heat from direct flame, convection currents | 3 | 3.5% | |
| 9 | All other sources | 13 | 15.3% |
Largest single-incident losses in ZIP 18031 across 2021–2025. These 8 fires alone account for 358% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $427,500 | Building fires | 2023 | Major |
| 2 | $103,300 | Fire in mobile home used as fixed residence | 2025 | Significant |
| 3 | $50,000 | Road freight or transport vehicle fire | 2025 | Significant |
| 4 | $22,990 | Passenger vehicle fire | 2022 | Significant |
| 5 | $15,000 | Passenger vehicle fire | 2025 | Significant |
| 6 | $5,000 | Off-road vehicle or heavy equipment fire | 2025 | Significant |
| 7 | $4,800 | Fires in structures other than in a building | 2022 | Significant |
| 8 | $2,000 | Trash or rubbish fire, contained | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 18031.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Breinigsville | 346 | |
| 2 | Upper Macungie | 4 | |
| 3 | Allentown | 2 |
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 — 499 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.