1 Posta katika Onne
Angalia orodha ya Posta katika Onne| Ukanda wa saa | Saa za Afrika Magharibi |
| Posta | 501101 |
Taarifa za demografia za Onne
| Biashara katika Onne | 44 |
Miji ya Karibu
| Mji▲ | Eneo la Utawala↕ | Nchi Au Eneo: | Idadi ya watu ya Mji↕ | Posta |
|---|---|---|---|---|
| Bori | Rivers State | Nigeria | 11,693 | 502101 |
| Obigbo | Rivers State | Nigeria | — | 502103, 502104, 510241 |
| Okrika | Rivers State | Nigeria | 133,271 | 500103 |
| Port Harcourt | Rivers State | Nigeria | 1,148,665 | 500101, 500211, 500221, 500241, 500242, 500243, 500244, 500261, 500262, 500263, 500264, 500265, 500271, 500272 |
| Rumuokoro | Rivers State | Nigeria | — | 500102 |