New Castle zipcode
| City | New Castle |
| ZIP Code | 16101 |
| Type | Standard |
| State Code | PA |
| State | Pennsylvania |
ZIP code of New Castle is 16101. This place is located in Pennsylvania state in US. To send any postal service to New Castle, you must use 16101 zipcode.
You should avoid following 1 city name of Pennsylvania to be used with the ZIP code 16101.
- Castle, PA