| Place | Postal Code |
|---|---|
| Okpolububo, Oporoma | 560103 |
| Olobobene, Oporoma | 560103 |
| Olugbogbene, Oporoma | 560103 |
| Ondewari, Oporoma | 560103 |
| Onyoma, Oporoma | 560103 |
| Oporoma, Oporoma | 560103 |
| Opuama, Oporoma | 560103 |
| Orikowe, Oporoma | 560103 |
| Osiama, Oporoma | 560103 |
| Otuan, Oporoma | 560103 |
| Oweikorogba, Oporoma | 560103 |
| Oyeregbene, Oporoma | 560103 |
| Ozezebiri, Oporoma | 560103 |
| Peremabiri, Oporoma | 560103 |
| Polobugo, Oporoma | 560103 |
| Saberugbene, Oporoma | 560103 |
| Sibiri, Oporoma | 560103 |
| Sundaugbene, Oporoma | 560103 |
| Sungbene, Oporoma | 560103 |
| Tomgbene, Oporoma | 560103 |
| Waribugo-gbene, Oporoma | 560103 |
| Postal Codes in Southern Ijaw | |
|---|---|
| Kolu-Ama, Southern Ijaw | |
| Oporoma, Southern Ijaw | |