| Place | Post Code |
|---|---|
| Afeobe, Ive-Ada-Obi | 313103 |
| Afeosho, Ive-Ada-Obi | 313103 |
| Afobakire, Ive-Ada-Obi | 313103 |
| Ebetse, Ive-Ada-Obi | 313103 |
| Ekeke, Ive-Ada-Obi | 313103 |
| Errah, Ive-Ada-Obi | 313103 |
| Esioriri, Ive-Ada-Obi | 313103 |
| Igbira Camp, Ive-Ada-Obi | 313103 |
| Isikpiri, Ive-Ada-Obi | 313103 |
| Ivbbioghogun, Ive-Ada-Obi | 313103 |
| Ivbeovokhai, Ive-Ada-Obi | 313103 |
| Ivbiakara, Ive-Ada-Obi | 313103 |
| Ivbiaro, Ive-Ada-Obi | 313103 |
| Obugonvbore, Ive-Ada-Obi | 313103 |
| Ofulu, Ive-Ada-Obi | 313103 |
| Olelo, Ive-Ada-Obi | 313103 |
| Ubuneke, Ive-Ada-Obi | 313103 |
| Ugbovbijan, Ive-Ada-Obi | 313103 |
| Ukpoke, Ive-Ada-Obi | 313103 |
| Usun, Ive-Ada-Obi | 313103 |
| Usun Camp, Ive-Ada-Obi | 313103 |
| Warrake, Ive-Ada-Obi | 313103 |
| 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 | |