Oke Ero Local Government Area in Kwara State uses postal codes ranging from 252101 to 252103.
Here are the postal codes for the towns and districts in Oke Ero:
Ekan Meje
| Location | Postcode |
| Ayedun | 252102 |
| Eken | 252102 |
| Erinmope | 252102 |
| Ilale | 252102 |
| Imoji | 252102 |
Idofin
| Location | Postcode |
| Idofin Odo-Ashe | 252103 |
| Idofin-Aiyekale | 252103 |
| Idofin-Eyinafo | 252103 |
| Idofin-Igbana | 252103 |
| Idofin-Odo-Afo | 252103 |
| Idofin-Odoaga | 252103 |
Ilofa/Odo-Owa
| Location | Postcode |
| Ilofa | 252101 |
| Odo-Owa | 252101 |