| Place | Post Code |
|---|---|
| Aja, Ellu | 334113 |
| Anthony-Camp, Ellu | 334113 |
| Aradhe, Ellu | 334113 |
| Dosiah-Camp, Ellu | 334113 |
| Ellu, Ellu | 334113 |
| Idoni, Ellu | 334113 |
| Ilaya-Camp, Ellu | 334113 |
| Ishakor-Camp, Ellu | 334113 |
| Oba-Camp, Ellu | 334113 |
| Okoro-Egbe-Camp, Ellu | 334113 |
| Ovrode-Camp, Ellu | 334113 |
| Ughusi-Camp, Ellu | 334113 |
| Urueme-Camp, Ellu | 334113 |
| All postal codes in Isoko North | |
|---|---|
| Ellu, Isoko North | |
| Emevor, Isoko North | |
| Iyede, Isoko North | |
| Ofagbe, Isoko North | |
| Okpe / Isoko, Isoko North | |
| Owhe, Isoko North | |
| Ozoro, Isoko North | |