| Place | Postal Code |
|---|---|
| Gatura, Kariara | 01013 |
| Gitiri, Kariara | 10200 |
| Kiarutara, Kariara | 10200 |
| Kigoro, Kariara | 10200 |
| Kimakia, Kariara | 10200 |
| Mbugiti, Kariara | 10200 |
| Ndakaini, Kariara | 10200 |
| Ndunyu Chege, Kariara | 10200 |
| Postal Codes in Gatanga | |
|---|---|
| Gatanga, Gatanga | |
| Ithanga, Gatanga | |
| Kakuzi/Mitubiri, Gatanga | |
| Kariara, Gatanga | |
| Kihumbu-Ini, Gatanga | |
| Mugumo-Ini, Gatanga | |