| Place | Post Code |
|---|---|
| Eguare, Opoji | 310115 |
| Ekhu, Opoji | 310115 |
| Iki, Opoji | 310115 |
| Ikiewanlen, Opoji | 310115 |
| Ikinaogo, Opoji | 310115 |
| Oghagbo, Opoji | 310115 |
| Okohore, Opoji | 310115 |
| Ujosalen, Opoji | 310115 |
| Uzebu, Opoji | 310115 |
| All postal codes in Esan Central | |
|---|---|
| Ebelle, Esan Central | |
| Ewossa, Esan Central | |
| Ewu, Esan Central | |
| Igueben, Esan Central | |
| Irrua, Esan Central | |
| Opoji, Esan Central | |
| Ugbegun, Esan Central | |