| LOCATION | PINCODE |
| Rajbhawan S.O (East Sikkim) | 737103 |
| Gangtok H.O | 737101 |
| Ranipool S.O | 737135 |
| Majitar S.O | 737136 |
| Rangpo S.O | 737132 |
| Singtam S.O | 737134 |
| Tadong S.O | 737102 |
| Makha S.O | 737138 |
| Pakyong S.O | 737106 |
| Rhenock S.O | 737133 |
| Rangli Bazar S.O | 737131 |
| Chungthang S.O | 737120 |
| Kabi S.O | 737117 |
| Dikchu S.O | 737107 |
| Mangan S.O | 737116 |
| Phensong S.O | 737118 |
| Phudong S.O | 737119 |
| Melli Bazar S.O | 737128 |
| Namchi S.O | 737126 |
| Ravangla S.O | 737139 |
| Gayzing S.O | 737111 |
| Pelling S.O | 737113 |
| Naya Bazar S.O (West Sikkim) | 737121 |
People who checked pin code of SOUTH SIKKIM, also checked pin code of places listed below.