| Place | Post Code |
|---|---|
| Lengei, Wamba West | 20600 |
| Lpus, Wamba West | 20600 |
| Lpus Leluai, Wamba West | 60300 |
| Ltirimin, Wamba West | 20600 |
| Ngaroni, Wamba West | 20600 |
| Ngutuk Engiron, Wamba West | 60300 |
| Remote, Wamba West | 60300 |
| Ressim, Wamba West | 20600 |
| Sesia, Wamba West | 20600 |
| Silanga-Nanyukie, Wamba West | 20600 |
| All postal codes in Samburu East | |
|---|---|
| Wamba East, Samburu East | |
| Wamba North, Samburu East | |
| Wamba West, Samburu East | |
| Waso, Samburu East | |