Oji River Local Government Area (LGA) of Enugu State, Nigeria, has several districts which all make use of different postal or zip codes.
Here are the postcodes for Oji River LGA:
Achi
| Location | Postcode |
| Achiagu | 401147 |
| Adu | 401147 |
| Agbadalna | 401147 |
| Ahani | 401147 |
| Akwu | 401147 |
| Amaetit | 401147 |
| Amankpunator | 401147 |
| Egwu Achi | 401147 |
| Elhuhe | 401147 |
| Enugu Achi | 401147 |
| Ihe | 401147 |
| Isikwe | 401147 |
| Nkpokoro | 401147 |
| Umumba | 401147 |
Akpugeze
| Location | Postcode |
| Abo | 401150 |
| Amagu | 401150 |
| Egbe-Agu | 401150 |
| Ofechem | 401150 |
| Ofemili | 401150 |
| Umudim | 401150 |
| Umuokpara | 401150 |
Awlaw
| Location | Postcode |
| Etiti | 401149 |
| Isiama | 401149 |
| Nkwuni | 401149 |
| Ubahu | 401149 |
Inyi
| Location | Postcode |
| Agbalidi | 401148 |
| Akwu | 401148 |
| Alaocha Nkwerre | 401148 |
| Alum | 401148 |
| Amankwo | 401148 |
| Enugu-Inyi | 401148 |
| Nkwerri-Inyi | 401148 |
| Obune | 401148 |
| Umuagu | 401148 |
| Umuome | 401148 |
Ojo River
| Location | Postcode |
| Agbalenyi | 401145 |
| Agu-Ugwu | 401145 |
| Central | 401145 |
| Dodo | 401145 |
| Ojia-Oyi | 401145 |
| Ojinato | 401145 |
| Ugwunzu | 401145 |
Ugwuoba
| Location | Postcode |
| Agolo | 401146 |
| Aguabosi | 401146 |
| Agungwu | 401146 |
| Agunwu-Ogboo | 401146 |
| Efulu | 401146 |
| Egbeagu | 401146 |
| Ezi-Achi | 401146 |
| Nkpagu | 401146 |
| Obiagu | 401146 |
| Ogbudu | 401146 |
| Okpudu | 401146 |
| Okwe | 401146 |
| Uide | 401146 |
| Umalu | 401146 |
| Umualu | 401146 |
| Umuomu | 401146 |
| Updata | 401146 |