| Place | Post Code |
|---|---|
| Irunduni, Mukothima | 60400 |
| Kanjoro, Mukothima | 60400 |
| Kirundi, Mukothima | 60400 |
| Mauthini, Mukothima | 60400 |
| Mukothima, Mukothima | 60400 |
| Ntoroni, Mukothima | 60400 |
| Thiiti, Mukothima | 60400 |
| All postal codes in Tharaka | |
|---|---|
| Chiakariga, Tharaka | |
| Gatunga, Tharaka | |
| Marimanti, Tharaka | |
| Mukothima, Tharaka | |
| Nkondi, Tharaka | |