Gangtok is Taluka (Tehsil) in East Sikkim district of Sikkim state. Gangtok has 21 areas (postal offices). Gangtok has a Head Office and the PIN Code of Gangtok is 737101.
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 737103 | Bhusuk PIN Code | East Sikkim | Gangtok | Branch Office |
| 737103 | Bojoghari PIN Code | East Sikkim | Gangtok | Branch Office |
| 737103 | Chongey PIN Code | East Sikkim | Gangtok | Branch Office |
| 737102 | Deorali PIN Code | East Sikkim | Gangtok | Sub Office |
| 737102 | Dhajey PIN Code | East Sikkim | Gangtok | Branch Office |
| 737101 | Gangtok PIN Code | East Sikkim | Gangtok | Head Office |
| 737101 | Gangtok Bazar PIN Code | East Sikkim | Gangtok | Sub Office |
| 737102 | Gnathang PIN Code | East Sikkim | Gangtok | Branch Office |
| 737102 | Kyanglasha PIN Code | East Sikkim | Gangtok | Branch Office |
| 737103 | Lingdok PIN Code | East Sikkim | Gangtok | Branch Office |
| 737102 | Lingdum PIN Code | East Sikkim | Gangtok | Branch Office |
| 737103 | Luing PIN Code | East Sikkim | Gangtok | Branch Office |
| 737102 | Pabyiok PIN Code | East Sikkim | Gangtok | Branch Office |
| 737103 | Penlong PIN Code | East Sikkim | Gangtok | Branch Office |
| 737103 | Rajbhawan East Sikkim PIN Code | East Sikkim | Gangtok | Sub Office |
| 737135 | Ranipool PIN Code | East Sikkim | Gangtok | Sub Office |
| 737102 | Samdur PIN Code | East Sikkim | Gangtok | Branch Office |
| 737102 | Sherathang PIN Code | East Sikkim | Gangtok | Branch Office |
| 737101 | Sichey Gaon PIN Code | East Sikkim | Gangtok | Sub Office |
| 737102 | Tadong PIN Code | East Sikkim | Gangtok | Sub Office |
| 737103 | Tashiling PIN Code | East Sikkim | Gangtok | Sub Office |