| Place | Post Code |
|---|---|
| Katikoni, Zombe/Mwitika | 90200 |
| Kavingo, Zombe/Mwitika | 90200 |
| Kikuu, Zombe/Mwitika | 90200 |
| Kyamatu, Zombe/Mwitika | 90200 |
| Makongo, Zombe/Mwitika | 90200 |
| Malatani, Zombe/Mwitika | 90200 |
| Muthungue, Zombe/Mwitika | 90200 |
| Mwitika, Zombe/Mwitika | 90200 |
| Ngungi, Zombe/Mwitika | 90200 |
| Thua, Zombe/Mwitika | 90200 |
| All postal codes in Kitui East | |
|---|---|
| Chuluni, Kitui East | |
| Endau/Malalani, Kitui East | |
| Mutito/Kaliku, Kitui East | |
| Nzambani, Kitui East | |
| Voo/Kyamatu, Kitui East | |
| Zombe/Mwitika, Kitui East | |