Northampton County ZIP Codes
Northampton County is a county of Pennsylvania.
- ZIP codes
- 29
- Cities & towns
- 19
- Area codes
- 5
- Land area
- 370 sq mi
Every ZIP code in Northampton County
| ZIP code | City |
|---|---|
| 18001 | Lehigh Valley |
| 18002 | Lehigh Valley |
| 18003 | Lehigh Valley |
| 18013 | Bangor |
| 18014 | Bath |
| 18015 | Bethlehem |
| 18016 | Bethlehem |
| 18017 | Bethlehem |
| 18018 | Bethlehem |
| 18020 | Bethlehem |
| 18035 | Cherryville |
| 18038 | Danielsville |
| 18040 | Easton |
| 18042 | Easton |
| 18043 | Easton |
| 18044 | Easton |
| 18045 | Easton |
| 18055 | Hellertown |
| 18063 | Martins Creek |
| 18064 | Nazareth |
| 18067 | Northampton |
| 18072 | Pen Argyl |
| 18083 | Stockertown |
| 18085 | Tatamy |
| 18086 | Treichlers |
| 18088 | Walnutport |
| 18091 | Wind Gap |
| 18343 | Mount Bethel |
| 18351 | Portland |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Northampton County codes above are listed without a column we would have to invent.
Cities and towns in Northampton County
A further 6 places in Northampton County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.
Area codes covering Northampton County
Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.
Where Northampton County's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope every ZIP code recorded in Northampton County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated . The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.