| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Amuzam, Ugwuaji | 400105 |
| Postal/ZIP Codes in Isiagu, Ugwuaji | 400105 |
| Postal/ZIP Codes in Ndiaga, Ugwuaji | 400105 |
| Postal/ZIP Codes in Ochufu, Ugwuaji | 400105 |
| Postal/ZIP Codes in Onuba, Ugwuaji | 400105 |
| Postal/ZIP Codes in Ugboba-Ani, Ugwuaji | 400105 |
| Postal/ZIP Codes in Umunnaji Ngene, Ugwuaji | 400105 |
| Postal/ZIP Codes in Umunnaugwu, Ugwuaji | 400105 |