| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Maimai Wanwan, Nuku | 556 |
| Postal/ZIP Codes in Nuku, Nuku | 556 |
| Postal/ZIP Codes in Palai, Nuku | 556 |
| Postal/ZIP Codes in Yangkok, Nuku | 556 |
| Postal Codes in West Sepik (Sandaun) | |
|---|---|
| Postal/ZIP Codes in Vanimo-Green River | Postal/ZIP Codes in Telefomin |
| Postal/ZIP Codes in Nuku | Postal/ZIP Codes in Aitape-Lumi |