| Place | Post Code |
|---|---|
| Lorien, Rumuruti Township | 20300 |
| Ndurumo, Rumuruti Township | 20300 |
| Rumuruti, Rumuruti Township | 20321 |
| All postal codes in Laikipia West | |
|---|---|
| Githiga (Laikipia), Laikipia West | |
| Igwamiti, Laikipia West | |
| Marmanet, Laikipia West | |
| Ol-Moran, Laikipia West | |
| Rumuruti Township, Laikipia West | |
| Salama, Laikipia West | |