| Locality | Post Code |
|---|---|
| Albion, Cassia | 83311 |
| Almo, Cassia | 83312 |
| Basin, Cassia | 83346 |
| Burley, Cassia | 83318 |
| Churchill, Cassia | 83346 |
| Cotterel, Cassia | 83323 |
| Declo, Cassia | 83323 |
| Elba, Cassia | 83342 |
| Idahome, Cassia | 83323 |
| Jackson, Cassia | 83350 |
| Malta, Cassia | 83342 |
| Oakley, Cassia | 83346 |
| Pella, Cassia | 83318 |
| Springdale, Cassia | 83318 |
| Starrhs Ferry, Cassia | 83318 |
| View, Cassia | 83318 |