| Place | Postal Code |
|---|---|
| Agbalidi, Inyi | 401148 |
| Akwu, Inyi | 401148 |
| Alaocha Nkwerre, Inyi | 401148 |
| Alum, Inyi | 401148 |
| Amankwo, Inyi | 401148 |
| Enugu-Inyi, Inyi | 401148 |
| Nkwerri-Inyi, Inyi | 401148 |
| Obune, Inyi | 401148 |
| Umuagu, Inyi | 401148 |
| Umuome, Inyi | 401148 |
| Postal Codes in Oji River | |
|---|---|
| Achi, Oji River | |
| Akpugeze, Oji River | |
| Awlaw, Oji River | |
| Inyi, Oji River | |
| Ojo River, Oji River | |
| Ugwuoba, Oji River | |