| Post Office | Moses Lake |
| Division | Grant |
| Pincode | 98837 |
| Post Office | Quincy |
| Division | Grant |
| Pincode | 98848 |
| Post Office | Ephrata |
| Division | Grant |
| Pincode | 98823 |
| Post Office | Mattawa |
| Division | Grant |
| Pincode | 99349 |
| Post Office | Soap Lake |
| Division | Grant |
| Pincode | 98851 |
| Post Office | Royal City |
| Division | Grant |
| Pincode | 99357 |
| Post Office | Warden |
| Division | Grant |
| Pincode | 98857 |
| Post Office | Grand Coulee |
| Division | Grant |
| Pincode | 99133 |
| Post Office | Coulee City |
| Division | Grant |
| Pincode | 99115 |
16 City in Grant | List of Zip Codes Location In Washington and Your selected County Grant