| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Ire, Obosi (Rural) | 434104 |
| Postal/ZIP Codes in Manakwum, Obosi (Rural) | 434104 |
| Postal/ZIP Codes in Okpuno, Obosi (Rural) | 434104 |
| Postal/ZIP Codes in Ugamuna, Obosi (Rural) | 434104 |
| Postal/ZIP Codes in Umuota, Obosi (Rural) | 434104 |
| Postal/ZIP Codes in Uruowulu, Obosi (Rural) | 434104 |