| Place | Post Code |
|---|---|
| Akiewe, Owhe | 334112 |
| Christopher-Camp, Owhe | 334112 |
| Ebregbegbu-Camp, Owhe | 334112 |
| Edhemoko, Owhe | 334112 |
| Ekreka, Owhe | 334112 |
| Ekreze-Camp, Owhe | 334112 |
| Eniagbedhi, Owhe | 334112 |
| Enuru, Owhe | 334112 |
| Eruwha, Owhe | 334112 |
| Eyaziaru, Owhe | 334112 |
| Iluelogbo, Owhe | 334112 |
| Kenan-Oehe-Camp, Owhe | 334112 |
| Oboro-Camp, Owhe | 334112 |
| Odor-Camp, Owhe | 334112 |
| Okeleza-Camp, Owhe | 334112 |
| Okwegbede-Camp, Owhe | 334112 |
| Otibio, Owhe | 334112 |
| Otie, Owhe | 334112 |
| Otor, Owhe | 334112 |
| Urude-Camp, Owhe | 334112 |
| 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 | |