| Place | Post Code |
|---|---|
| Abazu, Atta | 461102 |
| Agu, Atta | 461103 |
| Amaano, Atta | 461103 |
| Amaeke, Atta | 461103 |
| Amambaa, Atta | 461103 |
| Amauba, Atta | 461103 |
| Aro-Atta, Atta | 461103 |
| Attaukwu, Atta | 461103 |
| Awo/Ohii, Atta | 461103 |
| Ntu, Atta | 461103 |
| Obinnekel, Atta | 461102 |
| Ogada, Atta | 461103 |
| Okwara-Na-Ezeala, Atta | 461103 |
| Olulo/Dimagu, Atta | 461103 |
| Umuafa, Atta | 461103 |
| Umuchi, Atta | 461103 |
| Umudim, Atta | 461103 |
| Umueze, Atta | 461103 |
| Umuezekom, Atta | 461102 |
| Umuhu, Atta | 461103 |
| Umuhu-Ukwu, Atta | 461103 |
| Umuiyi, Atta | 461102 |
| Umuiyi-Ukwa, Atta | 461102 |
| Umulolo, Atta | 461103 |
| Umuohia, Atta | 461102 |
| Umuoku, Atta | 461103 |