| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Amachi, Okoposi | 491102 |
| Postal/ZIP Codes in Amelu Agu, Okoposi | 491102 |
| Postal/ZIP Codes in Amenu, Okoposi | 491102 |
| Postal/ZIP Codes in Anaeko/Mebiokpa, Okoposi | 491102 |
| Postal/ZIP Codes in Mebiowa, Okoposi | 491102 |
| Postal/ZIP Codes in Mgbom/Achara, Okoposi | 491102 |
| Postal/ZIP Codes in Okposi Okwu, Okoposi | 491102 |
| Postal/ZIP Codes in Umuekma, Okoposi | 491102 |
| Postal/ZIP Codes in Umuka, Okoposi | 491102 |
| Postal/ZIP Codes in Umunuka, Okoposi | 491102 |