| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 651 | Seyok Tea Garden | Seeyok BO | 📍 734214 | Jorebunglow Sukiapokhri | Branch Post Office |
| 652 | Shaibhita | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 653 | Shalbari Chhat Dwitiya Khanda | Sukna SO | 📍 734009 | Kurseong | Post Office - PO |
| 654 | Shibkhola Forest Paglajhora | Gayabari BO | 📍 734223 | Kurseong | Branch Post Office |
| 655 | Shyamdhan | Dulal Jote BO | 📍 734429 | Kharibari | Branch Post Office |
| 656 | Siliguri | Siliguri HO | 📍 734001 | Kurseong | Head Post Office - H |
| 657 | Siliguri | Pradhan Nagar SO | 📍 734003 | Kurseong | Post Office - PO |
| 658 | Siliguri | Siliguri Town SO | 📍 734004 | Kurseong | Post Office - PO |
| 659 | Siliguri | Siliguri Bazar SO | 📍 734005 | Kurseong | Post Office - PO |
| 660 | Siliguri | Jyoti Nagar BO | 📍 734005 | Kurseong | Post Office - PO |
| 661 | Simana Basti | Sukhiapokhari SO | 📍 734221 | Jorebunglow Sukiapokhri | Post Office - PO |
| 662 | Simring Tea Garden | Kurseong SO | 📍 734203 | Kurseong | Branch Post Office |
| 663 | Simulbari Tea Garden | Sukna SO | 📍 734009 | Kurseong | Post Office - PO |
| 664 | Sindibong Khasmahal | Rousay Bazar BO | 📍 734316 | Kalimpong -I | Branch Post Office |
| 665 | Sindibong Khasmahal | Sindebong BO | 📍 734316 | Kalimpong -I | Branch Post Office |
| 666 | Singalila Forest | Maneybhanjeng BO | 📍 734221 | Darjeeling Pulbazar | Branch Post Office |
| 667 | Singbhita | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 668 | Singbhumdera | Bijanbari SO | 📍 734201 | Darjeeling Pulbazar | Post Office - PO |
| 669 | Singbulli Tea Garden | Singbulli BO | 📍 734218 | Mirik | Branch Post Office |
| 670 | Singel Tea Garden | Kurseong SO | 📍 734203 | Kurseong | Branch Post Office |
| 671 | Singi Khasmahal | Sinji BO | 📍 734301 | Kalimpong -I | Branch Post Office |
| 672 | Singijhor | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 673 | Singla Tea Garden | Singla BO | 📍 734104 | Darjeeling Pulbazar | Branch Post Office |
| 674 | Singringtam | Singritam BO | 📍 734213 | Rangli Rangliot | Branch Post Office |
| 675 | Singtam Tea Garden | Bhanugram SO | 📍 734101 | Darjeeling Pulbazar | Post Office - PO |
| 676 | Singtam Tea Garden | Rose Bank SO | 📍 734101 | Darjeeling Pulbazar | Post Office - PO |
| 677 | Singtam Tea Garden | North Point SO | 📍 734104 | Darjeeling Pulbazar | Post Office - PO |
| 678 | Singtam Tea Garden | Singtam BO | 📍 734104 | Darjeeling Pulbazar | Branch Post Office |
| 679 | Sirsia Tea Garden | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 680 | Sisabari | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 681 | Sitong Forest | Sitong BO | 📍 734008 | Matigara | Branch Post Office |
| 682 | Sittong Forest | Sitong BO | 📍 734008 | Kurseong | Branch Post Office |
| 683 | Sittong Khasmahal | Sitong BO | 📍 734008 | Kurseong | Branch Post Office |
| 684 | Siubar | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 685 | Sivok Hill Forest | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 686 | Sivoke Forest | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 687 | Slokbhir Khasmahal | Seokbir BO | 📍 734301 | Kalimpong -I | Branch Post Office |
| 688 | Sona Chandi | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 689 | Sonada Forest | Sonada SO | 📍 734219 | Jorebunglow Sukiapokhri | Branch Post Office |
| 690 | Sonada Khasmahal | Sonada SO | 📍 734219 | Jorebunglow Sukiapokhri | Branch Post Office |
| 691 | Sonada Khasmahal | Nalichor BO | 📍 734219 | Jorebunglow Sukiapokhri | Branch Post Office |
| 692 | Soolbongs Tea Garden | Bijanbari SO | 📍 734201 | Jorebunglow Sukiapokhri | Post Office - PO |
| 693 | Soom Tea Garden | Soom BO | 📍 734104 | Darjeeling Pulbazar | Branch Post Office |
| 694 | Soriang Khasmahal | Bar Dara BO | 📍 734312 | Rangli Rangliot | Branch Post Office |
| 695 | South Shibkhola Tea Garden | Tindharia SO | 📍 734223 | Kurseong | Post Office - PO |
| 696 | Spring Sidi Tea Garden | Kurseong SO | 📍 734203 | Kurseong | Branch Post Office |
| 697 | St Marys | St.Mary's Hill SO | 📍 734220 | Kurseong | Branch Post Office |
| 698 | Subal | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 699 | Subalbhita | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 700 | Sukhiapokhri | Maneybhanjeng BO | 📍 734221 | Jorebunglow Sukiapokhri | Branch Post Office |