| Place | Post Code |
|---|---|
| Gacharage, Ndarugu | 00200 |
| Gitwe, Ndarugu | 00200 |
| Karatu, Ndarugu | 00200 |
| Karinga, Ndarugu | 00200 |
| Kirangi, Ndarugu | 00200 |
| Munyuini, Ndarugu | 00200 |
| Njahi, Ndarugu | 01000 |
| All postal codes in Gatundu South | |
|---|---|
| Kiamwangi, Gatundu South | |
| Kiganjo, Gatundu South | |
| Ndarugu, Gatundu South | |
| Ngenda, Gatundu South | |