| Postal Code | Town | County |
|---|---|---|
| 20414 | Kapkesosio | Bomet |
| 20415 | Kapkoros | Bomet |
| 20206 | Kapkugerwet | Kericho |
| 30111 | Kapngetuny | Uasin Gishu |
| 30300 | Kapsabet | Nandi |
| 30208 | Kapsara | Trans Nzoia |
| 20211 | Kapsoit | Kericho |
| 50203 | Kapsokwony | Bungoma |
| 30705 | Kapsowar | Elgeyo-Marakwet |
| 30313 | Kapsumbeiwa | Nandi |