| Place | Post Code |
|---|---|
| Afuze, Emai | 313101 |
| Eteye, Emai | 313101 |
| Evbiamen, Emai | 313101 |
| Evbiamen Urule, Emai | 313101 |
| Ogute, Emai | 313101 |
| Ojavun New Site, Emai | 313101 |
| Ojavun Old Site, Emai | 313101 |
| Okpa, Emai | 313101 |
| Okpokumi I, Emai | 313101 |
| Okpokumi II, Emai | 313101 |
| Ovbiomu, Emai | 313101 |
| Uanhumi, Emai | 313101 |
| All postal codes in Owan East | |
|---|---|
| Emai, Owan East | |
| Igue, Owan East | |
| Ihievbe, Owan East | |
| Ikao, Owan East | |
| Ivbi-Mion, Owan East | |
| Ive-Ada-Obi, Owan East | |
| Otuo, Owan East | |
| Uokha, Owan East | |