| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Eguaholor, Isi North | 301113 |
| Postal/ZIP Codes in Igueoke, Isi North | 301113 |
| Postal/ZIP Codes in Iguesogban, Isi North | 301113 |
| Postal/ZIP Codes in Iguomo, Isi North | 301113 |
| Postal/ZIP Codes in Ike, Isi North | 301113 |
| Postal/ZIP Codes in Iyanomo, Isi North | 301113 |
| Postal/ZIP Codes in Oghada, Isi North | 301113 |
| Postal/ZIP Codes in Okhuokhuo, Isi North | 301113 |
| Postal/ZIP Codes in Ugbezee, Isi North | 301113 |
| Postal/ZIP Codes in Urbenisi, Isi North | 301113 |