| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Akola, Osu | 233102 |
| Postal/ZIP Codes in Alakowe, Osu | 233102 |
| Postal/ZIP Codes in Alusekere, Osu | 233102 |
| Postal/ZIP Codes in Aro-Aji, Osu | 233102 |
| Postal/ZIP Codes in Ayorunbo, Osu | 233102 |
| Postal/ZIP Codes in Balogun, Osu | 233102 |
| Postal/ZIP Codes in Bara, Osu | 233102 |
| Postal/ZIP Codes in Iloba, Osu | 233102 |
| Postal/ZIP Codes in Itamerin, Osu | 233102 |
| Postal/ZIP Codes in Iwaro, Osu | 233102 |
| Postal/ZIP Codes in Odesomi, Osu | 233102 |
| Postal/ZIP Codes in Orogo, Osu | 233102 |
| Postal/ZIP Codes in Osu, Osu | 233102 |