| Place | Postal Code |
|---|---|
| Obiekwesu, Aro-Ngwa | 453114 |
| Okpuala-Aro, Aro-Ngwa | 453114 |
| Umuarakpa, Aro-Ngwa | 453114 |
| Umuejie, Aro-Ngwa | 453114 |
| Umugwua, Aro-Ngwa | 453114 |
| Umukaa, Aro-Ngwa | 453114 |
| Umukai, Aro-Ngwa | 453114 |
| Umuohia, Aro-Ngwa | 453114 |
| Umuonyenkwu, Aro-Ngwa | 453114 |
| Umuotuo, Aro-Ngwa | 453114 |