| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 1051 | Naraipur | Naraipur SO | 📍 845105 | Bagaha | Post Office - PO |
| 1052 | Naraparsauni | Pharsahani BO | 📍 845105 | Bagaha | Branch Post Office |
| 1053 | Narayanpur | Baijua BO | 📍 845438 | Bairia | Branch Post Office |
| 1054 | Narayanpur | Harpur Tola BO | 📍 845454 | Majhaulia | Branch Post Office |
| 1055 | Nariwal | Borwal BO | 📍 845105 | Bagaha | Branch Post Office |
| 1056 | Narkatia | Serwa Done BO | 📍 845106 | Ramnagar | Branch Post Office |
| 1057 | Narkatia | Behra BO | 📍 845307 | Mainatanr | Branch Post Office |
| 1058 | Narkatia | Dhankutwa BO | 📍 845449 | Sikta | Branch Post Office |
| 1059 | Narkatiaganj | Narkaiaganj SO | 📍 845455 | Narkatiaganj | Post Office - PO |
| 1060 | Nauda Parsauni | Parsauni Farm BO | 📍 845453 | Bagaha | Branch Post Office |
| 1061 | Nauganwa | Jogapatti SO | 📍 845452 | Jogapatti | Post Office - PO |
| 1062 | Naugawan | Laxmipur BO | 📍 845450 | Chanpatia | Branch Post Office |
| 1063 | Naurangia | Naraipur SO | 📍 845105 | Bagaha | Post Office - PO |
| 1064 | Naurangia | Nauragia Done BO | 📍 845106 | Ramnagar | Branch Post Office |
| 1065 | Naurangia Don | Ramnagar SO West Champaran | 📍 845106 | Ramnagar | Post Office - PO |
| 1066 | Naurangiya | Naurangia BO | 📍 845105 | Sidhaw | Branch Post Office |
| 1067 | Nautan | Nautan Dubey BO | 📍 845438 | Nautan | Branch Post Office |
| 1068 | Nautan | Alamganj Bazar BO | 📍 845459 | Nautan | Branch Post Office |
| 1069 | Nautan Dube | Nautan Dubey BO | 📍 845438 | Nautan | Branch Post Office |
| 1070 | Nautan Khas | Mangalpur Gudaria BO | 📍 845459 | Nautan | Branch Post Office |
| 1071 | Nautan Khurd | Harpur Tola BO | 📍 845454 | Majhaulia | Branch Post Office |
| 1072 | Nautanwa | Bagahi BO | 📍 845103 | Ramnagar | Branch Post Office |
| 1073 | Nautanwa | Semari Dumari BO | 📍 845106 | Ramnagar | Branch Post Office |
| 1074 | Nautanwa | Maniari BO | 📍 845451 | Narkatiaganj | Branch Post Office |
| 1075 | Nawalpur | Bhawanipur BO | 📍 845438 | Jogapatti | Branch Post Office |
| 1076 | Nawalpur | Nawalpur BO | 📍 845452 | Jogapatti | Branch Post Office |
| 1077 | Nawatanwa | Kunai Bhelahi BO | 📍 845105 | Sidhaw | Branch Post Office |
| 1078 | Nawtanwan | Kunai Bhelahi BO | 📍 845105 | Sidhaw | Branch Post Office |
| 1079 | Naya Tola | Bettiah HO | 📍 845438 | Bettiah | Head Post Office - H |
| 1080 | Nayaganw | Harnatar BO | 📍 845105 | Sidhaw | Branch Post Office |
| 1081 | Nayagawan | Chandraha BO | 📍 845101 | Bagaha | Branch Post Office |
| 1082 | New Colony | Bettiah HO | 📍 845438 | Bettiah | Head Post Office - H |
| 1083 | Nimuia | Patzirwa BO | 📍 845438 | Bairia | Branch Post Office |
| 1084 | Nimuia | Nawalpur BO | 📍 845452 | Jogapatti | Branch Post Office |
| 1085 | Nipania | Borwal BO | 📍 845105 | Bagaha | Branch Post Office |
| 1086 | Nonia Tola | Baishakhawa BO | 📍 845307 | Sikta | Branch Post Office |
| 1087 | Nonipakar | Gobraura BO | 📍 845453 | Lauriya | Branch Post Office |
| 1088 | Odarwa | Maniari BO | 📍 845451 | Narkatiaganj | Branch Post Office |
| 1089 | Officers Colony | Bettiah HO | 📍 845438 | Bettiah | Head Post Office - H |
| 1090 | Ojhaulia | Shiorajpur BO | 📍 845452 | Jogapatti | Branch Post Office |
| 1091 | Ojhauliya | Bakharia BO | 📍 845454 | Majhaulia | Branch Post Office |
| 1092 | Pachamwa | Maniari BO | 📍 845451 | Narkatiaganj | Branch Post Office |
| 1093 | Pachbhirwa | Siswania BO | 📍 845453 | Lauriya | Branch Post Office |
| 1094 | Pachgachhia | Rampur BO | 📍 845451 | Mainatanr | Branch Post Office |
| 1095 | Pachrauta | Rampur BO | 📍 845451 | Mainatanr | Branch Post Office |
| 1096 | Pachrukha | Bakuli BO | 📍 845105 | Sidhaw | Branch Post Office |
| 1097 | Pachrukha | Bakhari Pachrukhia BO | 📍 845106 | Ramnagar | Branch Post Office |
| 1098 | Pachrukha | Chauhatta BO | 📍 845451 | Mainatanr | Branch Post Office |
| 1099 | Pachrukhi | Rampur BO | 📍 845451 | Mainatanr | Branch Post Office |
| 1100 | Pachrukhia | Lachhnauta BO | 📍 845455 | Gaunaha | Branch Post Office |