| Place | Postal Code |
|---|---|
| Mgbuke, Umunachi | 421110 |
| Nagbana, Umunachi | 421110 |
| Nkwelle, Umunachi | 421110 |
| Ozzah, Umunachi | 421110 |
| Postal Codes in Dunukofia | |
|---|---|
| Ifite-Ukpo, Dunukofia | |
| Nawgu, Dunukofia | |
| Ukpo, Dunukofia | |
| Ukwulu, Dunukofia | |
| Umudioka, Dunukofia | |
| Umunachi, Dunukofia | |