| Place | Postal Code |
|---|---|
| Giathanini, Ithanga | 10200 |
| Ithanga, Ithanga | 01015 |
| Kaguku, Ithanga | 01000 |
| Ngelelya, Ithanga | 01000 |
| Postal Codes in Gatanga | |
|---|---|
| Gatanga, Gatanga | |
| Ithanga, Gatanga | |
| Kakuzi/Mitubiri, Gatanga | |
| Kariara, Gatanga | |
| Kihumbu-Ini, Gatanga | |
| Mugumo-Ini, Gatanga | |