| Place | Post Code |
|---|---|
| Kalia, Matinyani | 90200 |
| Katheuni, Matinyani | 90200 |
| Kathuma, Matinyani | 90200 |
| Kauma, Matinyani | 90200 |
| Kavuvuu, Matinyani | 90200 |
| Kitumbi, Matinyani | 90200 |
| Kyambusya, Matinyani | 90200 |
| Kyondoni, Matinyani | 90200 |
| Maini, Matinyani | 90200 |
| Maseki, Matinyani | 90200 |
| Musosya, Matinyani | 90200 |
| Nzakame, Matinyani | 90200 |
| All postal codes in Kitui West | |
|---|---|
| Kauwi, Kitui West | |
| Kwa Mutonga/Kithumula, Kitui West | |
| Matinyani, Kitui West | |
| Mutonguni, Kitui West | |