| Place | Post Code |
|---|---|
| Ikusya, Waita | 90400 |
| Kathoka, Waita | 90400 |
| Katitika, Waita | 90400 |
| Mwambui, Waita | 90400 |
| Nyaanya, Waita | 90400 |
| Thonoa, Waita | 90400 |
| Waita, Waita | 90400 |
| All postal codes in Mwingi Central | |
|---|---|
| Central Mwingi, Mwingi Central | |
| Kiomo/Kyethani, Mwingi Central | |
| Kivou, Mwingi Central | |
| Mui, Mwingi Central | |
| Nguni, Mwingi Central | |
| Nuu, Mwingi Central | |
| Waita, Mwingi Central | |