Allentown zipcode
| City | Allentown |
| ZIP Code | 18106 |
| Type | Standard |
| State Code | PA |
| State | Pennsylvania |
ZIP code of Allentown is 18106. This place is located in Pennsylvania state in US. To send any postal service to Allentown, you must use 18106 zipcode.
The ZIP code 18106 is also used with 1 more city name of Pennsylvania.
- Wescosville, PA