| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 1001 | Raghunipatti | Kumma BO | 📍 843331 | Sursand | Branch Post Office |
| 1002 | Raghunipatti | Radhaur BO | 📍 843331 | Sursand | Branch Post Office |
| 1003 | Rain Bishuni | Rain Shankar BO | 📍 843328 | Runisaidpur | Branch Post Office |
| 1004 | Rain Bishuni | Runnisaidpur SO | 📍 843328 | Runisaidpur | Post Office - PO |
| 1005 | Rain Shankar | Rain Shankar BO | 📍 843328 | Runisaidpur | Branch Post Office |
| 1006 | Rain Shankar | Runnisaidpur SO | 📍 843328 | Runisaidpur | Post Office - PO |
| 1007 | Rajepur | Barharwa SO Sitamarhi | 📍 843315 | Suppi | Post Office - PO |
| 1008 | Rajepur | Suppi BO | 📍 843315 | Suppi | Branch Post Office |
| 1009 | Rajopatti Gote | Rajopatti BO | 📍 843302 | Dumra | Branch Post Office |
| 1010 | Rajwara | P.Rajwara BO | 📍 843330 | Sonbarsa | Branch Post Office |
| 1011 | Rajwara Bhanpur | R.Bhanpur BO | 📍 843324 | Parihar | Branch Post Office |
| 1012 | Rambhelahi | Baburban BO | 📍 843324 | Parihar | Branch Post Office |
| 1013 | Ramnagar | Sirauli BO | 📍 843302 | Riga | Branch Post Office |
| 1014 | Ramnagar | Sankhi BO | 📍 843302 | Riga | Branch Post Office |
| 1015 | Ramnagar Bhadian | Bhadiyan BO | 📍 843333 | Nanpur | Branch Post Office |
| 1016 | Ramnagar Rasulpur Az Rakbe | Sonaul Mahoday BO | 📍 843332 | Sonbarsa | Branch Post Office |
| 1017 | Ramnaika | Indarwa BO | 📍 843324 | Parihar | Branch Post Office |
| 1018 | Ramni Tola | Parsauni SO | 📍 843325 | Parsauni | Post Office - PO |
| 1019 | Rampat Pakri | K.Madan BO | 📍 843332 | Majorganj | Branch Post Office |
| 1020 | Rampatti | Anhari BO | 📍 843302 | Dumra | Branch Post Office |
| 1021 | Rampatti | Paktola BO | 📍 843302 | Dumra | Branch Post Office |
| 1022 | Rampatti Rupi | Partapur BO | 📍 843311 | Runisaidpur | Branch Post Office |
| 1023 | Rampur | Sitamarhi Bazar SO | 📍 843302 | Dumra | Post Office - PO |
| 1024 | Rampur | Bakhari BO | 📍 843325 | Dumra | Branch Post Office |
| 1025 | Rampur | Runnisaidpur SO | 📍 843328 | Runisaidpur | Post Office - PO |
| 1026 | Rampur Bakhri | Bakhari BO | 📍 843325 | Dumra | Branch Post Office |
| 1027 | Rampur Gangauli | R.Ganguly BO | 📍 843327 | Riga | Branch Post Office |
| 1028 | Rampur Haripur | Bedaul BO | 📍 843320 | Pupri | Branch Post Office |
| 1029 | Rampur Kanth | Barharwa SO Sitamarhi | 📍 843315 | Suppi | Post Office - PO |
| 1030 | Rampur Kanth | Madhurapur BO | 📍 843315 | Suppi | Branch Post Office |
| 1031 | Rampur Kanth | Ranjitpur BO | 📍 843327 | Suppi | Branch Post Office |
| 1032 | Rampur Khurd | Garha BO | 📍 843320 | Pupri | Branch Post Office |
| 1033 | Rampur Khurd | B. Dharmapur BO | 📍 843320 | Pupri | Branch Post Office |
| 1034 | Rampur Parori | Banchauri BO | 📍 843302 | Dumra | Branch Post Office |
| 1035 | Rampur Saidpur Runi | Runnisaidpur SO | 📍 843328 | Runisaidpur | Post Office - PO |
| 1036 | Ramruch Nagar | Dumarbana BO | 📍 843313 | Bairgania | Branch Post Office |
| 1037 | Ranauli | Dighi BO | 📍 843322 | Bathnaha | Branch Post Office |
| 1038 | Ranauli | Majhaulia Estate SO | 📍 843322 | Bathnaha | Post Office - PO |
| 1039 | Ranjitpur urf Gobipur Daur | Ranjitpur BO | 📍 843327 | Dumra | Branch Post Office |
| 1040 | Rasalpur | R. Raghunathpur BO | 📍 843315 | Suppi | Post Office - PO |
| 1041 | Rasulganj urf Koili | Koili BO | 📍 843333 | Nanpur | Branch Post Office |
| 1042 | Rasulpur | Sitamarhi Bazar SO | 📍 843302 | Dumra | Post Office - PO |
| 1043 | Rasulpur | R.Gosaipur BO | 📍 843302 | Dumra | Branch Post Office |
| 1044 | Rasulpur | Janakpur Road SO | 📍 843320 | Bajpatti | Post Office - PO |
| 1045 | Rasulpur Dayal urf Bahira | Marpa Factory BO | 📍 843313 | Bairgania | Branch Post Office |
| 1046 | Rasulpur Malmala | Manikchowk SO | 📍 843323 | Runisaidpur | Post Office - PO |
| 1047 | Rasulpur Pitaunjia | Barharwa SO Sitamarhi | 📍 843315 | Majorganj | Post Office - PO |
| 1048 | Rasulpur Rambhadar urf Chlk | Bhakurahar BO | 📍 843313 | Bairgania | Branch Post Office |
| 1049 | Ratanpur | Barharwa SO Sitamarhi | 📍 843315 | Majorganj | Post Office - PO |
| 1050 | Ratanpur | Ratwara BO | 📍 843333 | Bajpatti | Branch Post Office |