| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Alaocha, Umuoma | 472120 |
| Postal/ZIP Codes in Eluama, Umuoma | 472120 |
| Postal/ZIP Codes in Ndiehuhu-Alaocha, Umuoma | 472120 |
| Postal/ZIP Codes in Ukwuobu, Umuoma | 472120 |
| Postal/ZIP Codes in Umuakugba, Umuoma | 472120 |
| Postal/ZIP Codes in Umudinagu, Umuoma | 472120 |
| Postal/ZIP Codes in Umuijerekwe, Umuoma | 472120 |
| Postal/ZIP Codes in Umunwaokafor, Umuoma | 472120 |