Newcastle zipcode
| City | Newcastle |
| ZIP Code | 84756 |
| Type | PO Box |
| State Code | UT |
| State | Utah |
ZIP code of Newcastle is 84756. This place is located in Utah state in US. To send any postal service to Newcastle, you must use 84756 zipcode.
You should avoid following 1 city name of Utah to be used with the ZIP code 84756.
- Pinto, UT