| Place | Post Code |
|---|---|
| Baratta, Orroroo Carrieton | 5432 |
| Belton, Orroroo Carrieton | 5432 |
| Bibliando, Orroroo Carrieton | 5432 |
| Black Rock, Orroroo Carrieton | 5431 |
| Carrieton, Orroroo Carrieton | 5432 |
| Coomooroo, Orroroo Carrieton | 5431 |
| Erskine, Orroroo Carrieton | 5422 |
| Eurelia, Orroroo Carrieton | 5431 |
| Johnburgh, Orroroo Carrieton | 5431 |
| Minburra, Orroroo Carrieton | 5431 |
| Minburra Plain, Orroroo Carrieton | 5431 |
| Morchard, Orroroo Carrieton | 5431 |
| Orroroo, Orroroo Carrieton | 5431 |
| Pekina, Orroroo Carrieton | 5431 |
| Walloway, Orroroo Carrieton | 5431 |
| Yalpara, Orroroo Carrieton | 5431 |
| Yanyarrie, Orroroo Carrieton | 5432 |
| Yatina, Orroroo Carrieton | 5422 |