| Place | Post Code |
|---|---|
| Lmarmaroi, Wamba North | 20600 |
| Lorok Onyokie, Wamba North | 20600 |
| Ngilai, Wamba North | 20600 |
| Nkare Narok, Wamba North | 20600 |
| Raraiti, Wamba North | 20600 |
| Swari, Wamba North | 20600 |
| All postal codes in Samburu East | |
|---|---|
| Wamba East, Samburu East | |
| Wamba North, Samburu East | |
| Wamba West, Samburu East | |
| Waso, Samburu East | |