| Place | Postal Code |
|---|---|
| Akpa, Obio Akpa | 533107 |
| Ata Essien Obio, Obio Akpa | 533107 |
| Ata Obio Akpa, Obio Akpa | 533107 |
| Aya Obio Akpa, Obio Akpa | 533107 |
| Ikot Eka Ide, Obio Akpa | 533107 |
| Ikot Idiaha, Obio Akpa | 533107 |
| Ikot Ukpong Obiokpong, Obio Akpa | 533107 |
| Ntak Obio Akpa, Obio Akpa | 533107 |
| Ntenge Akana, Obio Akpa | 533107 |
| Okpokoro, Obio Akpa | 533107 |
| Warife, Obio Akpa | 533107 |