| Postal Code | Town | County |
|---|---|---|
| 70101 | Hola | Tana River |
| 30109 | Huruma | Uasin Gishu |
| 10227 | Ichichi | Muranga |
| 40209 | Igare | Kisii |
| 01006 | Igegania | Kiambu |
| 60402 | Igoji | Tharaka-Nithi |
| 20307 | Igwamiti | Nyandarua |
| 10118 | Ihururu Market | Nyeri |
| 90147 | Ikanga | Kitui |
| 40415 | Ikerege | Migori |