Ido Osi is in Ekiti State, and the postal code is 371101. Here’s all the postal codes of the streets in Ido Osi.
IDO-EKITI
| Location | Postcode |
| Ayetoro Ekiti | 371101 |
| Igbole Ekiti | 371101 |
| Ilogbo Ekiti | 371101 |
| Osi Ekiti | 371101 |
| Usi Ekiti | 371101 |
IFAKI
| Location | Postcode |
| Igbira Camp | 371103 |
| Ipole | 371103 |
| Obaji | 371103 |
| Odo Oba-Aladesusi | 371103 |
| Okalawa | 371103 |
| Oke Ese | 371103 |
| Osi | 371103 |
| Temigbola | 371103 |
ORIN-EKITI
| Location | Postcode |
| Aaye Ekiti | 371102 |
| Ifisin-Ekiti | 371102 |
| Ilogun | 371102 |
| Odo-Ora | 371102 |
| Oke-Ora | 371102 |
| Ora-Ekiti | Place/Street |