New Castle zipcode
| City | New Castle |
| ZIP Code | 16105 |
| Type | Standard |
| State Code | PA |
| State | Pennsylvania |
ZIP code of New Castle is 16105. This place is located in Pennsylvania state in US. To send any postal service to New Castle, you must use 16105 zipcode.
The ZIP code 16105 is also used with 1 more city name of Pennsylvania.
- Neshannock, PA
You should avoid following 1 city name of Pennsylvania to be used with the ZIP code 16105.
- Castle, PA