| Place | Post Code |
|---|---|
| Udioho Ntan Ekere, Ibiono I | 520117 |
| Ukim-Idoro, Ibiono I | 520118 |
| Urua Abasi Umoh, Ibiono I | 520118 |
| Use Ikot-Amama, Ibiono I | 520118 |
| Use Ikot Odiong, Ibiono I | 520116 |
| Use Ndon, Ibiono I | 520116 |
| Usuk Aka, Ibiono I | 520114 |
| Usuk Ibiaku, Ibiono I | 520116 |
| Usuk Ntan Ekere, Ibiono I | 520117 |
| Utong-Idoro, Ibiono I | 520118 |
| All postal codes in Ibeno | |
|---|---|
| Ibeno Clan, Ibeno | |
| Ibiono I, Ibeno | |
| Ibiono II, Ibeno | |
| Ibiono III, Ibeno | |
| Ibiono III Central, Ibeno | |
| Ibiono (Southern), Ibeno | |
| Ikpanya, Ibeno | |