| Postal Code | Town | County |
|---|---|---|
| 30211 | Saboti | Trans Nzoia |
| 80308 | Sagalla | Taita-Taveta |
| 10230 | Sagana | Kirinyaga |
| 80120 | Samburu | Kwale |
| 50128 | Samitsi | Kakamega |
| 40405 | Sare | Migori |
| 00606 | Sarit Centre | Nairobi |
| 00513 | Sasumua Road | Nairobi |
| 40612 | Sawagongo | Siaya |
| 40614 | Sega | Siaya |