| Place | Postal Code |
|---|---|
| Aifaltar, Namchi | 737134 |
| Assangthang, Namchi | 737126 |
| Barnyak, Namchi | 737134 |
| Bikmat, Namchi | 737126 |
| Bomtar, Namchi | 737126 |
| Bul, Namchi | 737126 |
| Burul, Namchi | 737126 |
| Chemchey, Namchi | 737126 |
| Chisopani, Namchi | 737126 |
| Chuba, Namchi | 737126 |
| Chumlok, Namchi | 737126 |
| Damthang, Namchi | 737126 |
| Denchung, Namchi | 737126 |
| Dhargaon, Namchi | 737126 |
| Donok, Namchi | 737121 |
| Doring, Namchi | 737113 |
| Dorop, Namchi | 737126 |
| Gangchung, Namchi | 737134 |
| Gom, Namchi | 737126 |
| Gumpa-Ghurpisey, Namchi | 737126 |
| Jaubari, Namchi | 737126 |
| Kabrey, Namchi | 737134 |
| Kamarey, Namchi | 737128 |
| Kamrang, Namchi | 737132 |
| Kanamtek, Namchi | 737132 |
| Karek, Namchi | 737132 |
| Postal Codes in South Sikkim | |
|---|---|
| Namchi, South Sikkim | |
| Ravong, South Sikkim | |