| Postal Service | Dimmitt |
| Division | Castro |
| Post code | 79027 |
| Postal Service | Hart |
| Division | Castro |
| Post code | 79043 |
| Postal Service | Nazareth |
| Division | Castro |
| Post code | 79063 |
| Postal Service | Summerfield |
| Division | Castro |
| Post code | 79085 |
4 City in Castro | List of Zip Codes Location In Texas and Your selected County Castro