| Place | Post Code |
|---|---|
| Akhai, Ihievbe | 313102 |
| Ekhaieye, Ihievbe | 313102 |
| Emabu, Ihievbe | 313102 |
| Ihievbe-Ogben, Ihievbe | 313102 |
| Iyaba, Ihievbe | 313102 |
| Iyeradu, Ihievbe | 313102 |
| Oghuore, Ihievbe | 313102 |
| Okhuame, Ihievbe | 313102 |
| Ugba, Ihievbe | 313102 |
| 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 | |