| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Ega, Oria | 311102 |
| Postal/ZIP Codes in Eguare-Oria, Oria | 311102 |
| Postal/ZIP Codes in Ifade, Oria | 311102 |
| Postal/ZIP Codes in Igo, Oria | 311102 |
| Postal/ZIP Codes in Isoko Camp, Oria | 311102 |
| Postal/ZIP Codes in Itoya Camp, Oria | 311102 |
| Postal/ZIP Codes in John Smike Camp, Oria | 311102 |
| Postal/ZIP Codes in Ogbokpa, Oria | 311102 |
| Postal/ZIP Codes in Okoyoyomon Camp, Oria | 311102 |
| Postal/ZIP Codes in Okudu, Oria | 311102 |
| Postal/ZIP Codes in Omuakun, Oria | 311102 |
| Postal/ZIP Codes in Oria, Oria | 311102 |
| Postal/ZIP Codes in Thomas Camp, Oria | 311102 |
| Postal/ZIP Codes in Ukpowada, Oria | 311102 |