| Locality | Post Code |
|---|---|
| Blanchet, Grant | 41010 |
| Bracht, Grant | 41030 |
| Corinth, Grant | 41010 |
| Crittenden, Grant | 41030 |
| Dry Ridge, Grant | 41035 |
| Flingsville, Grant | 41030 |
| Jonesville, Grant | 41052 |
| Mason, Grant | 41054 |
| Owen, Grant | 41010 |
| Sherman, Grant | 41035 |
| Williamstown, Grant | 41097 |