| Lieu | Code postal |
|---|---|
| Idale, Urho-Nigbe | 301105 |
| Oliege, Urho-Nigbe | 301105 |
| Urhomehe, Urho-Nigbe | 301105 |
| Urhonigbe, Urho-Nigbe | 301105 |
| Codes postaux en Orhionmwon | |
|---|---|
| Aibiokunla, Orhionmwon | |
| Igbanke, Orhionmwon | |
| Oloten, Orhionmwon | |
| Ugboko, Orhionmwon | |
| Ugu, Orhionmwon | |
| Urho-Nigbe, Orhionmwon | |