| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Arroi, Imaroro | 01100 |
| Postal/ZIP Codes in Emarti, Imaroro | 01100 |
| Postal/ZIP Codes in Erankau, Imaroro | 01100 |
| Postal/ZIP Codes in Kilo, Imaroro | 01100 |
| Postal/ZIP Codes in Lesonkoyo, Imaroro | 01100 |
| Postal/ZIP Codes in Mashuru, Imaroro | 01103 |