| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 1001 | Santnagar | Sant Nagar BO | 📍 847404 | Jhanjharpur | Branch Post Office |
| 1002 | Sapta | M G Bazar SO | 📍 847214 | Madhubani | Post Office - PO |
| 1003 | Sapta | Sapta BO | 📍 847214 | Madhubani | Branch Post Office |
| 1004 | Sarabe | Sarabe Tarapatti BO | 📍 847228 | Khajauli | Branch Post Office |
| 1005 | Sarara | Sanpatahi BO | 📍 847401 | Babubarhi | Branch Post Office |
| 1006 | Sarauni | Madhepur SO | 📍 847408 | Madhepur | Post Office - PO |
| 1007 | Sarauti | Sarauti BO | 📍 847402 | Ghoghardiha | Branch Post Office |
| 1008 | Sarbsima | Lohna BO | 📍 847424 | Jhanjharpur | Branch Post Office |
| 1009 | SARISAB-PAHI | Sarisavpahi SO | 📍 847424 | Madhubani | Post Office - PO |
| 1010 | Sarsoti | Kamtaul SO | 📍 847304 | Bisfi | Post Office - PO |
| 1011 | Sater | Khajauli SO | 📍 847228 | Khajauli | Post Office - PO |
| 1012 | Satghara | Satghara BO | 📍 847224 | Babubarhi | Branch Post Office |
| 1013 | Satghara | Rajnagar SO Madhubani | 📍 847235 | Rajnagar | Post Office - PO |
| 1014 | Satghara | Satghara BO | 📍 847337 | Madhubani | Branch Post Office |
| 1015 | Satlakha | Rahika SO | 📍 847238 | Madhubani | Post Office - PO |
| 1016 | Saurath | Saurath BO | 📍 847213 | Madhubani | Branch Post Office |
| 1017 | Selibeli Chitahi | Seli Beli BO | 📍 847226 | Basopatti | Branch Post Office |
| 1018 | Semhli | Sahar SO Madhubani | 📍 847308 | Harlakhi | Post Office - PO |
| 1019 | Semraha | Tardiha BO | 📍 847408 | Madhepur | Branch Post Office |
| 1020 | Semuara | R.A.P.Mills BO | 📍 846002 | Madhubani | Branch Post Office |
| 1021 | Serma | Nazirpur BO | 📍 847215 | Madhubani | Branch Post Office |
| 1022 | Shahpur | Shahpur BO | 📍 847102 | Benipatti | Branch Post Office |
| 1023 | Shankar Sarai | Rampur BO | 📍 847424 | Pandaul | Branch Post Office |
| 1024 | Shankarpur | Andah BO | 📍 847234 | Pandaul | Branch Post Office |
| 1025 | Shankarpur | Meghoul BO | 📍 847239 | Pandaul | Branch Post Office |
| 1026 | Shankarpur | Kako BO | 📍 847404 | Jhanjharpur | Branch Post Office |
| 1027 | Shankarpur | Sunder Virajit BO | 📍 847408 | Madhepur | Branch Post Office |
| 1028 | Shekhjore | Sankorthu BO | 📍 847424 | Pandaul | Branch Post Office |
| 1029 | Shekhpur | Sankorthu BO | 📍 847424 | Pandaul | Branch Post Office |
| 1030 | Shivnagar | Shivnagar BO | 📍 847102 | Benipatti | Branch Post Office |
| 1031 | Shubhankarpur | Andah BO | 📍 847234 | Pandaul | Branch Post Office |
| 1032 | Shyampur | Bhour BO | 📍 847231 | Pandaul | Branch Post Office |
| 1033 | Shyamsidhap | Shyamsidhap BO | 📍 847235 | Babubarhi | Branch Post Office |
| 1034 | Sibaul | Bhoj Pandaul BO | 📍 847121 | Bisfi | Branch Post Office |
| 1035 | Sidhap Kalan | Sidhap Kalan BO | 📍 847226 | Ladania | Branch Post Office |
| 1036 | Sidhapa | Sidhap Kalan BO | 📍 847226 | Ladania | Branch Post Office |
| 1037 | Sihoria | Ganauli BO | 📍 847401 | Andhratharhi | Branch Post Office |
| 1038 | Sihula | Siktiahi BO | 📍 847227 | Laukaha | Branch Post Office |
| 1039 | Sijaulia | Sijaulia BO | 📍 847409 | Phulparas | Branch Post Office |
| 1040 | Sijhaul | Ganaura BO | 📍 847408 | Madhepur | Branch Post Office |
| 1041 | Sikaria | Ramchandra BO | 📍 847408 | Madhepur | Branch Post Office |
| 1042 | Siktiahi | Siktiahi BO | 📍 847227 | Laukaha | Branch Post Office |
| 1043 | Silanath Dulipatti | Barhi BO | 📍 847226 | Jainagar | Branch Post Office |
| 1044 | Silanath Dulipatti | Dullipatti BO | 📍 847226 | Jainagar | Branch Post Office |
| 1045 | Silra | Selra BO | 📍 847228 | Jainagar | Branch Post Office |
| 1046 | Simra | Simra BO | 📍 847404 | Jhanjharpur | Branch Post Office |
| 1047 | Simrarhi | Jonki BO | 📍 847225 | Basopatti | Branch Post Office |
| 1048 | Simri | Simri BO | 📍 847222 | Bisfi | Branch Post Office |
| 1049 | Simri | Simri BO | 📍 847235 | Rajnagar | Branch Post Office |
| 1050 | Sindurpura | Chanouraganj BO | 📍 847404 | Jhanjharpur | Branch Post Office |