| Place | Postal Code |
|---|---|
| Amagu, Ndikeli-Onwu | 423126 |
| Arogwe, Ndikeli-Onwu | 423126 |
| Aronato, Ndikeli-Onwu | 423126 |
| Ezinkwo, Ndikeli-Onwu | 423126 |
| Eziokwe, Ndikeli-Onwu | 423126 |
| Ndiefele, Ndikeli-Onwu | 423126 |
| Ndikpa, Ndikeli-Onwu | 423126 |
| Ndinwedo, Ndikeli-Onwu | 423126 |
| Obinikpa, Ndikeli-Onwu | 423126 |
| Umudim, Ndikeli-Onwu | 423126 |
| Umuochu, Ndikeli-Onwu | 423126 |