Northampton County, Pennsylvania ZIP Codes
- ZIP records
22 - Cities represented
18 - Sum of listed ZIP population estimates
310,527
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 18042 | Easton | 45,532 |
| 2 | 18017 | Bethlehem | 40,640 |
| 3 | 18015 | Bethlehem | 34,852 |
| 4 | 18045 | Easton | 30,429 |
| 5 | 18064 | Nazareth | 26,970 |
| 6 | 18020 | Bethlehem | 21,204 |
| 7 | 18067 | Northampton | 19,590 |
| 8 | 18013 | Bangor | 17,597 |
| 9 | 18040 | Easton | 17,256 |
| 10 | 18055 | Hellertown | 12,117 |
Cities in Northampton County
- Bangor
- Bath
- Bethlehem
- Cherryville
- Danielsville
- Easton
- Hellertown
- Martins Creek
- Mount Bethel
- Nazareth
- Northampton
- Pen Argyl
- Portland
- Stockertown
- Tatamy
- Treichlers
- Walnutport
- Wind Gap
ZIP Directory
- ZIP 18013
- ZIP 18014
- ZIP 18015
- ZIP 18017
- ZIP 18020
- ZIP 18035
- ZIP 18038
- ZIP 18040
- ZIP 18042
- ZIP 18045
- ZIP 18055
- ZIP 18063
- ZIP 18064
- ZIP 18067
- ZIP 18072
- ZIP 18083
- ZIP 18085
- ZIP 18086
- ZIP 18088
- ZIP 18091
- ZIP 18343
- ZIP 18351
Browse all ZIP data for Pennsylvania
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.