ZIP 18101 recorded 32 fire and hazmat incidents in 2025, 563 across 2021–2025. Primary county: Lehigh County, PA.
563 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 157 | |
| 2022 | 160 | |
| 2023 | 117 | |
| 2024 | 97 | |
| 2025 | 32 |
Mar peaks. Oct dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 18101 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 85 | 15.1% | |
| 2 | Gas leak (natural gas or LPG) | 73 | 13.0% | |
| 3 | Power line down | 38 | 6.7% | |
| 4 | Unauthorized burning | 38 | 6.7% | |
| 5 | Carbon monoxide incident | 34 | 6.0% |
For the 4 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 18101 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Cooking area, kitchen | 35 | 21.1% | |
| 2 | Undetermined | 29 | 17.5% | |
| 3 | Outside area, other | 27 | 16.3% | |
| 4 | Engine area, running gear, wheel area | 13 | 7.8% | |
| 5 | Other | 8 | 4.8% | |
| 6 | Highway, parking lot, street: on or near | 8 | 4.8% | |
| 7 | Exterior stairway, ramp, or fire escape | 4 | 2.4% | |
| 8 | Wildland, woods | 4 | 2.4% | |
| 9 | All other areas | 38 | 22.9% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 112 | 67.5% | |
| 2 | Heat source: other | 10 | 6.0% | |
| 3 | Heat from powered equipment, other | 10 | 6.0% | |
| 4 | Radiated, conducted heat from operating equipment | 9 | 5.4% | |
| 5 | Arcing | 5 | 3.0% | |
| 6 | Cigarette | 5 | 3.0% | |
| 7 | Spark, ember or flame from operating equipment | 3 | 1.8% | |
| 8 | Hot or smoldering object, other | 3 | 1.8% | |
| 9 | All other sources | 9 | 5.4% |
Largest single-incident losses in ZIP 18101 across 2021–2025. These 2 fires alone account for 0% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $40,000 | Building fires | 2022 | Significant |
| 2 | $500 | Building fires | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 18101.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Allentown | 550 |
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 — 563 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.