ZIP 18001 is served primarily by Lehigh County, PA — including Allentown. ZIP-level data is sparse — showing the Lehigh County aggregate.
Mar peaks. Dec dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 397 | 23.4% | |
| 2 | Gas leak (natural gas or LPG) | 151 | 8.9% | |
| 3 | Cooking fire, confined to container | 96 | 5.7% | |
| 4 | Carbon monoxide incident | 91 | 5.4% | |
| 5 | Brush, or brush and grass mixture fire | 85 | 5.0% |
37 cities sit in Lehigh County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Allentown | 125,292 | 432 | 51 | B- |
| 2 | Lower Macungie | 32,419 | 1 | 0 | A+ |
| 3 | Whitehall | 29,066 | 46 | 25 | A+ |
| 4 | Upper Macungie | 26,483 | 9 | 0 | A+ |
| 5 | South Whitehall | 21,044 | 0 | 0 | A+ |
| 6 | Upper Saucon | 16,944 | 0 | 0 | A+ |
| 7 | Fullerton | 16,358 | 0 | 0 | — |
| 8 | North Whitehall | 15,702 | 0 | 0 | — |
| 9 | Salisbury | 13,637 | 14 | 7 | A+ |
| 10 | Emmaus | 11,644 | 131 | 15 | A- |
| 11 | Breinigsville | 9,035 | 78 | 7 | A- |
| 12 | Upper Milford | 7,853 | 0 | 0 | A+ |
| 13 | Ancient Oaks | 7,363 | 0 | 0 | — |
| 14 | Wescosville | 6,799 | 0 | 0 | A+ |
| 15 | Catasauqua | 6,512 | 60 | 16 | B- |
| 16 | Dorneyville | 5,093 | 0 | 0 | — |
| 17 | Weisenberg | 4,979 | 1 | 0 | A+ |
| 18 | Fountain Hill | 4,819 | 8 | 5 | A |
| 19 | Slatington | 4,283 | 36 | 28 | C+ |
| 20 | Lynn | 4,237 | 0 | 0 | — |
| 21 | Schnecksville | 3,893 | 24 | 4 | A+ |
| 22 | Lower Milford | 3,865 | 0 | 0 | A+ |
| 23 | Coplay | 3,390 | 31 | 9 | B- |
| 24 | Macungie | 3,249 | 33 | 9 | B |
| 25 | Egypt | 2,998 | 0 | 0 | — |
| 26 | Hokendauqua | 2,960 | 0 | 0 | — |
| 27 | Alburtis | 2,569 | 22 | 7 | B+ |
| 28 | Cetronia | 2,377 | 0 | 0 | — |
| 29 | Coopersburg | 2,332 | 75 | 22 | C |
| 30 | Lowhill | 2,201 | 0 | 0 | — |
| 31 | Trexlertown | 1,885 | 17 | 3 | A- |
| 32 | Cementon | 1,365 | 0 | 0 | — |
| 33 | Stiles | 1,097 | 0 | 0 | — |
| 34 | DeSales University | 942 | 0 | 0 | — |
| 35 | Laurys Station | 728 | 0 | 0 | A- |
| 36 | New Tripoli | 681 | 30 | 6 | C- |
| 37 | Slatedale | 550 | 0 | 0 | — |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
This ZIP doesn't have enough NFIRS coverage on its own (under 10 reported incidents across 2021–2025) to publish ZIP-level statistics, so we're showing the Lehigh County aggregate above. NFIRS reporting is voluntary and many rural ZIPs roll up to broader county totals. The ZIP-to-county mapping uses SimpleMaps' uscities.zips dataset.