Obi Local Government Area in Nasarawa State uses postal codes ranging from 951101 to 951102.
Here are the postal codes for the towns and districts in Obi:
Obi
| Location | Postcode |
| Adudu | 951102 |
| Agwatashi | 951102 |
| Akanga | 951102 |
| Atabara | 951102 |
| Daddere | 951102 |
| Dedere | 951102 |
| Obi | 951102 |
Zhemegli
| Location | Postcode |
| Abiuga | 951101 |
| Agrugwa | 951101 |
| Agwade | 951101 |
| Agyaragu | 951101 |
| Ajeregwa | 951101 |
| Akaba | 951101 |
| Akaleku | 951101 |
| Akunza Migula | 951101 |
| Akwanka | 951101 |
| Angantiv | 951101 |
| Angwan-Madaki | 951101 |
| Ashiga | 951101 |
| Ashipe | 951101 |
| Atu Kwasa | 951101 |
| Baba | 951101 |
| Dazillah | 951101 |
| Duduguro | 951101 |
| Echiechene | 951101 |
| Eregwa | 951101 |
| Eshugu | 951101 |
| Gidan Ausa | 951101 |
| Gwadanya | 951101 |
| Idevi | 951101 |
| Kwashiri | 951101 |
| Kyakale | 951101 |
| Mutum Daya | 951101 |
| Sabo | 951101 |
| Tabula | 951101 |
| Umah | 951101 |