| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Akpani, Umulumgbe | 401121 |
| Postal/ZIP Codes in Akpato, Umulumgbe | 401121 |
| Postal/ZIP Codes in Ama-Uwenu, Umulumgbe | 401121 |
| Postal/ZIP Codes in Amabor, Umulumgbe | 401121 |
| Postal/ZIP Codes in Amachara, Umulumgbe | 401121 |
| Postal/ZIP Codes in Amaowerri, Umulumgbe | 401121 |
| Postal/ZIP Codes in Edem, Umulumgbe | 401121 |
| Postal/ZIP Codes in Eziama, Umulumgbe | 401121 |
| Postal/ZIP Codes in Lett, Umulumgbe | 401121 |
| Postal/ZIP Codes in Okomaji, Umulumgbe | 401121 |
| Postal/ZIP Codes in Uwenu, Umulumgbe | 401121 |