ZIP Code 18103 – Allentown, Pennsylvania
The 18103 ZIP Code belongs to Allentown, Pennsylvania. The population in this 18103 ZIP code is 47,336. The latitude is 40.57223 and longitude is -75.48138 in 18103 Allentown, Pennsylvania. The time zone for this 18103 ZIP code is America/New_York.
| City | Allentown |
| Zip Code | 18103 |
| State | Pennsylvania |
| County | Lehigh |
| Population | 47,336 |
| Latitude | 40.57223 |
| Longitude | -75.48138 |
| Time Zone | America/New_York |