| Place | Post Code |
|---|---|
| Ika Oku, Oku | 520109 |
| Ikot Abiyak, Oku | 520109 |
| Ikot Adakpan, Oku | 520109 |
| Ikot Antuen, Oku | 520109 |
| Ikot Eka Iko, Oku | 520109 |
| Ikot Esia, Oku | 520109 |
| Ikot Essien, Oku | 520109 |
| Ikot Ntu Oku, Oku | 520109 |
| Settlements, Oku | 520109 |
| All postal codes in Itu | |
|---|---|
| Ayadehe, Itu | |
| East Itam, Itu | |
| Itu, Itu | |
| Mbiabo, Itu | |
| Oku, Itu | |
| West Itam, Itu | |