| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Achra, Isuochi | 441111 |
| Postal/ZIP Codes in Amuda, Isuochi | 441111 |
| Postal/ZIP Codes in Ihie, Isuochi | 441111 |
| Postal/ZIP Codes in Lomara, Isuochi | 441111 |
| Postal/ZIP Codes in Mbala, Isuochi | 441111 |
| Postal/ZIP Codes in Ndiawa, Isuochi | 441111 |
| Postal/ZIP Codes in Ngodo, Isuochi | 441111 |
| Postal/ZIP Codes in Umuaku, Isuochi | 441111 |
| Postal/ZIP Codes in Umuelem, Isuochi | 441111 |