| Place | Post Code |
|---|---|
| Ekae, Isi South | 301114 |
| Erhuan, Isi South | 301114 |
| Evbowe, Isi South | 301114 |
| Evguogho, Isi South | 301114 |
| Iguagba, Isi South | 301114 |
| Iguagbe, Isi South | 301114 |
| Iguezomo, Isi South | 301114 |
| Iguiyase, Isi South | 301114 |
| Ilobi, Isi South | 301114 |
| Izikhiri, Isi South | 301114 |
| Obanisi, Isi South | 301114 |