| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Akpan, Umudioka | 421109 |
| Postal/ZIP Codes in Okpuru, Umudioka | 421109 |
| Postal/ZIP Codes in Ugwu, Umudioka | 421109 |
| Postal/ZIP Codes in Umajana, Umudioka | 421109 |
| Postal/ZIP Codes in Umuechigbo, Umudioka | 421109 |
| Postal/ZIP Codes in Umuezechia, Umudioka | 421109 |
| Postal/ZIP Codes in Umuezekweo, Umudioka | 421109 |
| Postal/ZIP Codes in Umugha, Umudioka | 421109 |
| Postal/ZIP Codes in Uruagu, Umudioka | 421109 |
| Postal/ZIP Codes in Uruowelle, Umudioka | 421109 |