| Place | Postal Code |
|---|---|
| Abbia, Ikem | 412101 |
| Amu-Aram, Ikem | 412101 |
| Amudam, Ikem | 412101 |
| Iken-Nkwo, Ikem | 412101 |
| Odomogwo, Ikem | 412101 |
| Ogor, Ikem | 412101 |
| Umu-Aja, Ikem | 412101 |
| Postal Codes in Isi Uzo | |
|---|---|
| Eha-Amufu, Isi Uzo | |
| Ikem, Isi Uzo | |
| Mbu Amon, Isi Uzo | |
| Neke, Isi Uzo | |
| Umuero, Isi Uzo | |