| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Aba, Aba | 450211, 450212, 450221, 450241, 450251, 450252, 450261, 450271, 450272 |
| Postal Codes in Abia North | |
|---|---|
| Postal/ZIP Codes in Aba, Abia North | |
| Postal/ZIP Codes in Eziama, Abia North | |
| Postal/ZIP Codes in Ogbor hill, Abia North | |