| Place | Post Code |
|---|---|
| Ikime, Nguni | 90400 |
| Kamutiu, Nguni | 90400 |
| Kyavyuka, Nguni | 90400 |
| Malawa, Nguni | 90400 |
| Mathyakani, Nguni | 90400 |
| Mbuvu, Nguni | 90400 |
| Mwalali, Nguni | 90400 |
| Mwasuma, Nguni | 90400 |
| Ukasi, Nguni | 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 | |