| Place | Post Code |
|---|---|
| Barrabup, Nannup | 6275 |
| Biddelia, Nannup | 6260 |
| Carlotta, Nannup | 6275 |
| Cundinup, Nannup | 6275 |
| Darradup, Nannup | 6275 |
| Donnelly River, Nannup | 6258 |
| East Nannup, Nannup | 6275 |
| Jalbarragup, Nannup | 6275 |
| Lake Jasper, Nannup | 6260 |
| Nannup, Nannup | 6275 |
| Peerabeelup, Nannup | 6260 |
| Scott River East, Nannup | 6275 |