| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 2501 | Sughri | Sughri BO | 📍 841406 | Bhagwanpur Hat | Branch Post Office |
| 2502 | Suhpur | Chorma BO | 📍 841406 | Bhagwanpur Hat | Branch Post Office |
| 2503 | Sujaon | Pachlakhi BO | 📍 841436 | Siwan | Branch Post Office |
| 2504 | Sultanpur | Andar SO | 📍 841231 | Andar | Post Office - PO |
| 2505 | Sultanpur | Basantpur SO Siwan | 📍 841406 | Bhagwanpur Hat | Post Office - PO |
| 2506 | Sultanpur | Sughri BO | 📍 841406 | Bhagwanpur Hat | Branch Post Office |
| 2507 | Sultanpur | Sagar Sultanpur BO | 📍 841417 | Bhagwanpur Hat | Branch Post Office |
| 2508 | Sultanpur | Raghunathpur SO Siwan | 📍 841504 | Raghunathpur | Post Office - PO |
| 2509 | Sultanpur Kalan | Sultanpur Kala BO | 📍 841413 | Goriakothi | Branch Post Office |
| 2510 | Sultanpur Khurd | Sultanpur Kala BO | 📍 841413 | Goriakothi | Branch Post Office |
| 2511 | Sumeri Chhapra | Punak BO | 📍 841239 | Mairwa | Branch Post Office |
| 2512 | Sundarpur | Sundri BO | 📍 841438 | Barharia | Branch Post Office |
| 2513 | Supauli | Jasauli BO | 📍 841437 | Pachrukhi | Branch Post Office |
| 2514 | Surad Sahi | Mairwa SO | 📍 841239 | Mairwa | Post Office - PO |
| 2515 | Surahia | Barhria SO | 📍 841232 | Barharia | Post Office - PO |
| 2516 | Surahia | Sawana BO | 📍 841438 | Barharia | Branch Post Office |
| 2517 | Suraiya | Hasanpura SO | 📍 841236 | Hasanpura | Post Office - PO |
| 2518 | Suraj Baliya | Khujhwa SO | 📍 841502 | Raghunathpur | Post Office - PO |
| 2519 | Surajbalia | Admapur BO | 📍 841504 | Raghunathpur | Branch Post Office |
| 2520 | Surajpura | Kishunpura SO | 📍 841416 | Basantpur | Post Office - PO |
| 2521 | Surapur | Chapia Bujurg BO | 📍 841226 | Hussainganj | Branch Post Office |
| 2522 | Surapur chhapiya | Chapia Bujurg BO | 📍 841226 | Hussainganj | Branch Post Office |
| 2523 | Surbir | Paterhi SO | 📍 841242 | Maharajganj | Post Office - PO |
| 2524 | Surhari Dih | Alapur BO | 📍 841286 | Pachrukhi | Branch Post Office |
| 2525 | Surujpura | Akolhi BO | 📍 841239 | Ziradei | Branch Post Office |
| 2526 | Survir | Paterhi SO | 📍 841242 | Maharajganj | Post Office - PO |
| 2527 | Surwal | Zeradei SO | 📍 841245 | Ziradei | Post Office - PO |
| 2528 | Surwala | Surwala BO | 📍 841227 | Pachrukhi | Branch Post Office |
| 2529 | Surwalia | Tethli BO | 📍 841232 | Barharia | Post Office - PO |
| 2530 | Surwaniya | Nautan BO | 📍 841243 | Nautan | Branch Post Office |
| 2531 | Surwar Gondi | Sematar BO | 📍 841239 | Guthani | Branch Post Office |
| 2532 | Suryapura | Kabirpur BO | 📍 841243 | Nautan | Branch Post Office |
| 2533 | Tahira | Sarsar BO | 📍 841226 | Siwan | Branch Post Office |
| 2534 | Tahira | Pachlakhi BO | 📍 841436 | Siwan | Branch Post Office |
| 2535 | Takia | Hardia BO | 📍 841226 | Pachrukhi | Branch Post Office |
| 2536 | Takipur | Takipur SO | 📍 841244 | Maharajganj | Post Office - PO |
| 2537 | Takipur Brit tola | Takipur SO | 📍 841244 | Maharajganj | Post Office - PO |
| 2538 | Takipur derapar | Takipur SO | 📍 841244 | Maharajganj | Post Office - PO |
| 2539 | Takipur Dhamak Tola | Takipur SO | 📍 841244 | Maharajganj | Post Office - PO |
| 2540 | Takipur Ghushak tola | Takipur SO | 📍 841244 | Maharajganj | Post Office - PO |
| 2541 | Takipur Mathia | Takipur SO | 📍 841244 | Maharajganj | Post Office - PO |
| 2542 | Takipur Mishir tola | Takipur SO | 📍 841244 | Maharajganj | Post Office - PO |
| 2543 | Takipur Pachim tola | Takipur SO | 📍 841244 | Maharajganj | Post Office - PO |
| 2544 | Tali | Jagdishpur Kothi BO | 📍 841243 | Nautan | Branch Post Office |
| 2545 | Tali Buzurg | Talli BO | 📍 841239 | Guthani | Branch Post Office |
| 2546 | Tali Khurd | Talli BO | 📍 841239 | Guthani | Branch Post Office |
| 2547 | Tali Kurmaha | Talli BO | 📍 841239 | Guthani | Branch Post Office |
| 2548 | Talia tola | Bakerganj SO | 📍 841286 | Hasanpura | Post Office - PO |
| 2549 | Taliajnar | Sondhani BO | 📍 841408 | Bhagwanpur Hat | Branch Post Office |
| 2550 | Talidal Chand | Talli BO | 📍 841239 | Guthani | Branch Post Office |