Post offices and branch post offices present in East Sikkim district of Sikkim state. There are 101 Post Offices located in the district. List of Pin code of all the places in East Sikkim is listed below.
| Post Office | Taluk | District | PIN Code |
|---|---|---|---|
| Ahoo Busty B.O | Ranipool | East Sikkim | 737135 |
| Amba B.O | Rhenock | East Sikkim | 737133 |
| Aritar B.O | Rhenock | East Sikkim | 737133 |
| Assam Lingzey B.O | Ranipool | East Sikkim | 737135 |
| Bardang B.O | Singtam | East Sikkim | 737134 |
| Bering B.O | Pakyong | East Sikkim | 737106 |
| Bermiok B.O | Singtam | East Sikkim | 737134 |
| Bermiok B.O | Pelling | East Sikkim | 737113 |
| Beyong B.O | Singtam | East Sikkim | 737134 |
| Bhusuk B.O | Gangtok | East Sikkim | 737103 |
| Bojoghari B.O | Gangtok | East Sikkim | 737103 |
| Changayshanti B.O | Pakyong | East Sikkim | 737106 |
| Chongey B.O | Gangtok | East Sikkim | 737103 |
| Chujachen B.O | Rangli | East Sikkim | 737131 |
| Dalapchand B.O | Rangli | East Sikkim | 737131 |
| Deorali S.O | Gangtok | East Sikkim | 737102 |
| Dhajey B.O | Gangtok | East Sikkim | 737102 |
| Dikchu S.O | Dikchu | East Sikkim | 737107 |
| Dipudara Nhpc Complex B.O | Singtam | East Sikkim | 737134 |
| Duga B.O | Rangpo | East Sikkim | 737132 |
| East Pendam B.O | Rangpo | East Sikkim | 737132 |
| Gangkha Busty B.O | Singtam | East Sikkim | 737134 |
| Gangtok Bazar S.O | Gangtok | East Sikkim | 737101 |
| Gangtok H.O | Gangtok | East Sikkim | 737101 |
| Gnathang B.O | Gangtok | East Sikkim | 737102 |
| Gor B.O | Dikchu | East Sikkim | 737107 |
| Karthok B.O | Pakyong | East Sikkim | 737106 |
| Kateng Bokrang B.O | Rangpo | East Sikkim | 737132 |
| Khamdong B.O | Singtam | East Sikkim | 737134 |
| Kokalay B.O | Singtam | East Sikkim | 737134 |
| Kyanglasha B.O | Gangtok | East Sikkim | 737102 |
| Latuk B.O | Rangli | East Sikkim | 737131 |
| Lingdok B.O | Gangtok | East Sikkim | 737103 |
| Lingdum B.O | Gangtok | East Sikkim | 737102 |
| Lingee B.O | Singtam | East Sikkim | 737134 |
| Lingmoo B.O | Singtam | East Sikkim | 737134 |
| Lingtam B.O | Rangli | East Sikkim | 737131 |
| Lingzey B.O | Singtam | East Sikkim | 737134 |
| Linkey B.O | Pakyong | East Sikkim | 737106 |
| Luing B.O | Gangtok | East Sikkim | 737103 |
| Lumlingthyang B.O | Dikchu | East Sikkim | 737107 |
| Lunsing B.O | Singtam | East Sikkim | 737134 |
| Majitar S.O | Rangpo | East Sikkim | 737136 |
| Makha S.O | Singtam | East Sikkim | 737138 |
| Mamring B.O | Rangpo | East Sikkim | 737132 |
| Maney Dara B.O | Rangpo | East Sikkim | 737132 |
| Middle Camp B.O | Ranipool | East Sikkim | 737135 |
| Namcheybong B.O | Pakyong | East Sikkim | 737106 |
| Namphing B.O | Singtam | East Sikkim | 737134 |
| Namthang B.O | Rangpo | East Sikkim | 737132 |
| Nandok B.O | Ranipool / Gangtok | East Sikkim | 737135 |
| Nazitam B.O | Singtam | East Sikkim | 737134 |
| Neya B.O | Singtam | East Sikkim | 737134 |
| North Regu B.O | Rangli | East Sikkim | 737131 |
| Pabyiok B.O | Gangtok | East Sikkim | 737102 |
| Pacheykhani B.O | Pakyong | East Sikkim | 737106 |
| Pakyong S.O | Pakyong | East Sikkim | 737106 |
| Parkha B.O | Rangli | East Sikkim | 737131 |
| Penlong B.O | Gangtok | East Sikkim | 737103 |
| Phadamchen B.O | Rangli | East Sikkim | 737131 |
| Rajbhawan S.O (East Sikkim) | Gangtok | East Sikkim | 737103 |
| Rakdong B.O | Dikchu | East Sikkim | 737107 |
| Raley Khesey B.O | Dikchu | East Sikkim | 737107 |
| Rangli Bazar S.O | Rangli | East Sikkim | 737131 |
| Rangpo S.O | Rangpo | East Sikkim | 737132 |
| Ranipool S.O | Gangtok | East Sikkim | 737135 |
| Rautey-rumtek B.O | Ranipool / Gangtok | East Sikkim | 737135 |
| Ray-mindu B.O | Ranipool | East Sikkim | 737135 |
| Rhenock S.O | Rhenock | East Sikkim | 737133 |
| Rolep B.O | Rangli | East Sikkim | 737131 |
| Rorathang B.O | Rhenock | East Sikkim | 737133 |
| Rumtek B.O | Ranipool | East Sikkim | 737135 |
| Sakhu Busty B.O | Singtam | East Sikkim | 737134 |
| Samdong B.O | Dikchu | East Sikkim | 737107 |
| Samdur B.O | Gangtok | East Sikkim | 737102 |
| Samlick-marchak B.O | Ranipool | East Sikkim | 737135 |
| Sangkhola B.O | Singtam | East Sikkim | 737134 |
| Sherathang B.O | Gangtok | East Sikkim | 737102 |
| Shivalaya Mandir Lingsey B.O | Rhenock | East Sikkim | 737133 |
| Sichey Gaon S.O | Gangtok | East Sikkim | 737101 |
| Sinchuthang B.O | Singtam | East Sikkim | 737134 |
| Singtam S.O | Singtam | East Sikkim | 737134 |
| SMU(Sikkim Manipal University) | East District | East Sikkim | 737102 |
| Song B.O | Singtam | East Sikkim | 737134 |
| South Regu B.O | Rangli | East Sikkim | 737131 |
| Sudunglakha B.O | Rhenock | East Sikkim | 737133 |
| Sumin B.O | Singtam | East Sikkim | 737134 |
| Tadong S.O | Gangtok | East Sikkim | 737102 |
| Tarku B.O | Singtam | East Sikkim | 737134 |
| Tashiling S.O | Gangtok | East Sikkim | 737103 |
| Taza B.O | Rhenock | East Sikkim | 737133 |
| Temi Tarku B.O | Singtam | East Sikkim | 737134 |
| Tshalamthang B.O | Pakyong | East Sikkim | 737106 |
| Tumin B.O | Singtam | East Sikkim | 737134 |
| Turung B.O | Rangpo | East Sikkim | 737132 |
| Upper Dalapchand B.O | Rhenock | East Sikkim | 737133 |
| Upper Khamdong B.O | Rhenock | East Sikkim | 737133 |
| Upper Martam B.O | Ranipool / Gangtok | East Sikkim | 737135 |
| Upper Pendam B.O | Rangpo | East Sikkim | 737132 |
| West Pendam B.O | Singtam | East Sikkim | 737134 |
| Yangyang B.O | Singtam | East Sikkim | 737134 |