| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Afikpo Road, Ishiagu | 491105 |
| Postal/ZIP Codes in Amaeke, Ishiagu | 491105 |
| Postal/ZIP Codes in Amaeze, Ishiagu | 491105 |
| Postal/ZIP Codes in Amagu, Ishiagu | 491105 |
| Postal/ZIP Codes in Amaokwe, Ishiagu | 491105 |
| Postal/ZIP Codes in Amaonye, Ishiagu | 491105 |
| Postal/ZIP Codes in Amata, Ishiagu | 491105 |
| Postal/ZIP Codes in Eziato, Ishiagu | 491105 |
| Postal/ZIP Codes in Ihiali, Ishiagu | 491105 |
| Postal/ZIP Codes in Ihie I, Ishiagu | 491105 |
| Postal/ZIP Codes in Ihietutu, Ishiagu | 491105 |
| Postal/ZIP Codes in Nguogwo, Ishiagu | 491105 |
| Postal/ZIP Codes in Nzerem, Ishiagu | 491105 |
| Postal/ZIP Codes in Obinagu, Ishiagu | 491105 |
| Postal/ZIP Codes in Ogwor, Ishiagu | 491105 |
| Postal/ZIP Codes in Okue, Ishiagu | 491105 |