| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Achiagu, Achi | 401147 |
| Postal/ZIP Codes in Adu, Achi | 401147 |
| Postal/ZIP Codes in Agbadalna, Achi | 401147 |
| Postal/ZIP Codes in Ahani, Achi | 401147 |
| Postal/ZIP Codes in Akwu, Achi | 401147 |
| Postal/ZIP Codes in Amaetit, Achi | 401147 |
| Postal/ZIP Codes in Amankpunator, Achi | 401147 |
| Postal/ZIP Codes in Egwu Achi, Achi | 401147 |
| Postal/ZIP Codes in Elhuhe, Achi | 401147 |
| Postal/ZIP Codes in Enugu Achi, Achi | 401147 |
| Postal/ZIP Codes in Ihe, Achi | 401147 |
| Postal/ZIP Codes in Isikwe, Achi | 401147 |
| Postal/ZIP Codes in Nkpokoro, Achi | 401147 |
| Postal/ZIP Codes in Umumba, Achi | 401147 |