| Locality | Post Code |
|---|---|
| Ah Gwah Ching, Cass | 56484 |
| Backus, Cass | 56435 |
| Barclay, Cass | 56474 |
| Bena, Cass | 56626 |
| Beulah, Cass | 56662 |
| Blind Lake, Cass | 56474 |
| Boy Lake, Cass | 56655 |
| Boy River, Cass | 56672 |
| Brevik, Cass | 56655 |
| Cass Lake, Cass | 56633 |
| Chickamaw Beach, Cass | 56474 |
| Crooked Lake, Cass | 56662 |
| Farden, Cass | 56633 |
| Farris, Cass | 56633 |
| Federal Dam, Cass | 56641 |
| Hackensack, Cass | 56452 |
| Inguadona, Cass | 56655 |
| Kego, Cass | 56655 |
| Leech Lake, Cass | 56484 |
| Lima, Cass | 56672 |
| Longville, Cass | 56655 |
| Macville, Cass | 55785 |
| Onigum, Cass | 56484 |
| Outing, Cass | 56662 |
| Pike Bay, Cass | 56633 |
| Pillager, Cass | 56473 |