| Place | Postal Code |
|---|---|
| Chebara, Kabwareng | 30300 |
| Chepkuny, Kabwareng | 30300 |
| Kapkeben, Kabwareng | 30300 |
| Kenyor, Kabwareng | 30300 |
| Kereri, Kabwareng | 30300 |
| Koibarak, Kabwareng | 30300 |
| Postal Codes in Aldai | |
|---|---|
| Kabwareng, Aldai | |
| Kaptumo-Kaboi, Aldai | |
| Kemeloi-Maraba, Aldai | |
| Kobujoi, Aldai | |
| Koyo-Ndurio, Aldai | |
| Terik, Aldai | |