| Lieu | Code postal |
|---|---|
| Amuzuta, Old Umu-Ahia | 440103 |
| Okwu, Old Umu-Ahia | 440103 |
| Umecheokwu, Old Umu-Ahia | 440103 |
| Umuecheokwu, Old Umu-Ahia | 440103 |
| Umueledi, Old Umu-Ahia | 440103 |
| Umuezeala, Old Umu-Ahia | 440103 |
| Umuobutu, Old Umu-Ahia | 440103 |
| Umuovo, Old Umu-Ahia | 440103 |