| Place | Post Code |
|---|---|
| Amadumu, Nnobi | 434116 |
| Awuda, Nnobi | 434116 |
| Ebenesi, Nnobi | 434116 |
| Eziora, Nnobi | 434116 |
| Ifite, Nnobi | 434116 |
| Ndam, Nnobi | 434116 |
| Ngo, Nnobi | 434116 |
| Ubaha, Nnobi | 434116 |
| Umagu, Nnobi | 434116 |
| Umuafor, Nnobi | 434116 |
| Umudinya, Nnobi | 434116 |
| Umuegbu, Nnobi | 434116 |
| Umuezike, Nnobi | 434116 |
| Umuobi, Nnobi | 434116 |
| Umuru, Nnobi | 434116 |
| All postal codes in Idemili South | |
|---|---|
| Akwa-Etiti, Idemili South | |
| Akwu, Idemili South | |
| Alor, Idemili South | |
| Nnobi, Idemili South | |
| Nnokwa, Idemili South | |
| Oba, Idemili South | |
| Ojoto, Idemili South | |