| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Ojamonogwu, Okpo | 270107 |
| Postal/ZIP Codes in Ojuwo-Ochekwu, Okpo | 270107 |
| Postal/ZIP Codes in Okpe, Okpo | 270107 |
| Postal/ZIP Codes in Okpo, Okpo | 270107 |
| Postal/ZIP Codes in Onugba, Okpo | 270107 |
| Postal/ZIP Codes in Opu, Okpo | 270107 |
| Postal/ZIP Codes in Otakpa, Okpo | 270107 |
| Postal/ZIP Codes in Otakwuihi, Okpo | 270107 |
| Postal/ZIP Codes in Otuapa, Okpo | 270107 |
| Postal/ZIP Codes in Owosho, Okpo | 270107 |
| Postal/ZIP Codes in Ubalu, Okpo | 270107 |
| Postal/ZIP Codes in Uefodo, Okpo | 270107 |
| Postal/ZIP Codes in Ugbogbo-Iga, Okpo | 270107 |
| Postal/ZIP Codes in Ugbologidi, Okpo | 270107 |
| Postal/ZIP Codes in Ugojo, Okpo | 270107 |
| Postal Codes in Olamaboro | |
|---|---|
| Postal/ZIP Codes in Imani, Olamaboro | |
| Postal/ZIP Codes in Ogodu, Olamaboro | |
| Postal/ZIP Codes in Okpo, Olamaboro | |