| Place | Postal Code |
|---|---|
| Agbon, Olomu | 333112 |
| Akperhe, Olomu | 333112 |
| Aloba, Olomu | 333112 |
| Ogoname, Olomu | 333112 |
| Ogoni, Olomu | 333112 |
| Okpare, Olomu | 333112 |
| Okpavuerhe, Olomu | 333112 |
| Okpe, Olomu | 333112 |
| Olomu, Olomu | 333112 |
| Ophori, Olomu | 333112 |
| Ophorigbala, Olomu | 333112 |
| Ototere, Olomu | 333112 |
| Oviri, Olomu | 333112 |
| Ovwodokpokpo, Olomu | 333112 |
| Ovwor, Olomu | 333112 |
| Umolo, Olomu | 333112 |