East Sikkim have 13 pincodes.

Gangtok 3 locations 737101
Tadong 10 locations 737102
Rajbhawan (East Sikkim) 8 locations 737103
Pakyong 8 locations 737106
Dikchu 6 locations 737107
Bermiok 1 locations 737113
Rangli Bazar 10 locations 737131
Rangpo 9 locations 737132
Rhenock 9 locations 737133
Singtam 25 locations 737134
Ranipool 10 locations 737135
Majitar 1 locations 737136
Makha 1 locations 737138