| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Ama-Agu, Okpatu | 401118 |
| Postal/ZIP Codes in Ama Egbu, Okpatu | 401118 |
| Postal/ZIP Codes in Amachalla, Okpatu | 401118 |
| Postal/ZIP Codes in Amani-Okpatu, Okpatu | 401118 |
| Postal/ZIP Codes in Amaonugbu, Okpatu | 401118 |
| Postal/ZIP Codes in Amoka, Okpatu | 401118 |
| Postal/ZIP Codes in Amukwu, Okpatu | 401118 |
| Postal/ZIP Codes in Eziama, Okpatu | 401118 |
| Postal/ZIP Codes in Obiagu, Okpatu | 401118 |
| Postal/ZIP Codes in Umeneme, Okpatu | 401118 |
| Postal/ZIP Codes in Umuchime, Okpatu | 401118 |
| Postal/ZIP Codes in Umuene, Okpatu | 401118 |