| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 1101 | Rupsagar | Rupsagar BO | 📍 802129 | Nawanagar | Branch Post Office |
| 1102 | Sabdalpur Ditto | Simari SO | 📍 802135 | Simri | Post Office - PO |
| 1103 | Sagarpur | Nenua BO | 📍 802119 | Dumraon | Branch Post Office |
| 1104 | Sagra | Rampur BO | 📍 802114 | Chausa | Branch Post Office |
| 1105 | Sagrampur | Boksa BO | 📍 802103 | Buxar | Branch Post Office |
| 1106 | Sagrawan | Mangraon Sangraon BO | 📍 802122 | Rajpur | Branch Post Office |
| 1107 | Sahipur | Attaon BO | 📍 802119 | Dumraon | Branch Post Office |
| 1108 | Sahipur | Atrauna BO | 📍 802123 | Itarhi | Branch Post Office |
| 1109 | Sahiyar | Sahiyar BO | 📍 802131 | Simri | Branch Post Office |
| 1110 | Sahiyar Bhagar | Sahiyar BO | 📍 802131 | Simri | Branch Post Office |
| 1111 | Sahupara | Churamanpur SO | 📍 802116 | Buxar | Post Office - PO |
| 1112 | Saikuwa | Jalahara BO | 📍 802128 | Rajpur | Branch Post Office |
| 1113 | Saitapur | Deoria BO | 📍 802122 | Rajpur | Branch Post Office |
| 1114 | Saithu | Harpur BO | 📍 802128 | Rajpur | Branch Post Office |
| 1115 | Sakhuana | Kanehari BO | 📍 802128 | Rajpur | Branch Post Office |
| 1116 | Salarpur | Chausa SO Buxar | 📍 802114 | Chausa | Post Office - PO |
| 1117 | Salempur | Dumari SO Buxar | 📍 802120 | Simri | Post Office - PO |
| 1118 | Salempur | Itarhi SO | 📍 802123 | Nawanagar | Post Office - PO |
| 1119 | Salsala | Sonbarsa BO | 📍 802118 | Nawanagar | Branch Post Office |
| 1120 | Samahuta | Dhansoi SO | 📍 802117 | Rajpur | Post Office - PO |
| 1121 | Samda | Indaur BO | 📍 802117 | Itarhi | Branch Post Office |
| 1122 | Samhar | Nenua BO | 📍 802119 | Dumraon | Branch Post Office |
| 1123 | Samusar | Sonbarsa BO | 📍 802125 | Chaugain | Branch Post Office |
| 1124 | Sansarpur | Mangraon Sangraon BO | 📍 802122 | Rajpur | Branch Post Office |
| 1125 | Santh | Itarhi SO | 📍 802123 | Itarhi | Post Office - PO |
| 1126 | Sanwabahar | Unwas BO | 📍 802123 | Itarhi | Branch Post Office |
| 1127 | Sapahi Ditto | Mahuar BO | 📍 802112 | Chakki | Branch Post Office |
| 1128 | Sara | Mania BO | 📍 802125 | Nawanagar | Branch Post Office |
| 1129 | Sarae Kans | Dhansoi SO | 📍 802117 | Rajpur | Post Office - PO |
| 1130 | Saraia | Bashudhar BO | 📍 802123 | Itarhi | Branch Post Office |
| 1131 | Saranga | Asha Parari BO | 📍 802135 | Simri | Branch Post Office |
| 1132 | Saraon | Mangraon Sangraon BO | 📍 802122 | Rajpur | Branch Post Office |
| 1133 | Sarasti | Itarhi SO | 📍 802123 | Itarhi | Post Office - PO |
| 1134 | Sarayan | Chaubey Ke Prasia BO | 📍 802128 | Rajpur | Branch Post Office |
| 1135 | Sarenja | Sarenja BO | 📍 802114 | Chausa | Branch Post Office |
| 1136 | Sarimpur | Sarimpur BO | 📍 802116 | Buxar | Branch Post Office |
| 1137 | Saro Dih | Attaon BO | 📍 802119 | Dumraon | Branch Post Office |
| 1138 | Sarora | Ariaon BO | 📍 802119 | Dumraon | Branch Post Office |
| 1139 | Satohari Dih | Sikraul BO | 📍 802129 | Nawanagar | Branch Post Office |
| 1140 | Sauri | Dehari BO | 📍 802114 | Chausa | Branch Post Office |
| 1141 | Sauwanbandh | Pulia BO | 📍 802102 | Buxar | Branch Post Office |
| 1142 | Semaria | Manikpur BO | 📍 802128 | Rajpur | Branch Post Office |
| 1143 | Semrauna | Simari SO | 📍 802135 | Simri | Post Office - PO |
| 1144 | Semri English | Simari SO | 📍 802135 | Simri | Post Office - PO |
| 1145 | Sewai | Pararia Pramanpur BO | 📍 802129 | Nawanagar | Branch Post Office |
| 1146 | Shahbazpur | Jalahara BO | 📍 802128 | Rajpur | Branch Post Office |
| 1147 | Shahpur | Nagpur BO | 📍 802122 | Rajpur | Branch Post Office |
| 1148 | Shahpur Gangabarar Ditto | Simari SO | 📍 802135 | Simri | Post Office - PO |
| 1149 | Shankarpur | Saisar Ganghari BO | 📍 802117 | Rajpur | Branch Post Office |
| 1150 | Shankarpur | Sonbarsa BO | 📍 802118 | Buxar | Branch Post Office |