| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Achara, Umuaka | 474123 |
| Postal/ZIP Codes in Amafor, Umuaka | 474123 |
| Postal/ZIP Codes in Amainyi, Umuaka | 474123 |
| Postal/ZIP Codes in Amakor, Umuaka | 474123 |
| Postal/ZIP Codes in Ibele, Umuaka | 474123 |
| Postal/ZIP Codes in Isiozi, Umuaka | 474123 |
| Postal/ZIP Codes in Obeakpu, Umuaka | 474123 |
| Postal/ZIP Codes in Ogbele, Umuaka | 474123 |
| Postal/ZIP Codes in Uba, Umuaka | 474123 |
| Postal/ZIP Codes in Umuele, Umuaka | 474123 |