| Place | Post Code |
|---|---|
| Chieni, Ruguru | 10100 |
| Gatunganga, Ruguru | 10100 |
| Hiriga, Ruguru | 10100 |
| Iruri, Ruguru | 10100 |
| Karuthi, Ruguru | 10100 |
| Kiamariga, Ruguru | 10122 |
| Ruturu, Ruguru | 10100 |
| Sagana, Ruguru | 10100 |
| All postal codes in Mathira | |
|---|---|
| Iriaini, Mathira | |
| Karatina Town, Mathira | |
| Kirimukuyu, Mathira | |
| Konyu, Mathira | |
| Magutu, Mathira | |
| Ruguru, Mathira | |