| Place | Post Code |
|---|---|
| Kapsimotwo, Silibwet Township | 20400 |
| Motigo, Silibwet Township | 20400 |
| Silibwet, Silibwet Township | 20422 |
| All postal codes in Bomet Central | |
|---|---|
| Chesoen, Bomet Central | |
| Mutarakwa, Bomet Central | |
| Ndaraweta, Bomet Central | |
| Silibwet Township, Bomet Central | |
| Singorwet, Bomet Central | |