| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 101 | Barisanwak | Sankh BO | 📍 851131 | Begusarai | Branch Post Office |
| 102 | barkhunt | Barkhunt BO | 📍 851111 | Teghra | Branch Post Office |
| 103 | Barkhunt S.O | Barkhunt S.O | 📍 851121 | Begusarai | Sub Post Office |
| 104 | Barki Balia | Bari Ballia BO | 📍 851211 | Balia | Branch Post Office |
| 105 | Barmotra Chanwar | Baraipura BO | 📍 848204 | Chhorahi | Branch Post Office |
| 106 | Baro | Baro SO | 📍 851118 | Teghra | Post Office - PO |
| 107 | Basahi | Bashi BO | 📍 848202 | Cheria Bariarpur | Branch Post Office |
| 108 | Basahi | Churamachak BO | 📍 851133 | Bhagwanpur | Branch Post Office |
| 109 | Basdeopur | Koria Haibatpur BO | 📍 851127 | Begusarai | Branch Post Office |
| 110 | Basdeopur | Bhagatpur BO | 📍 851211 | Balia | Branch Post Office |
| 111 | Bathaul | Baraipura BO | 📍 848204 | Chhorahi | Branch Post Office |
| 112 | Bazidpur | Purpathar BO | 📍 848204 | Chhorahi | Branch Post Office |
| 113 | Bazidpur | Mirzapur Banduar SO | 📍 851129 | Begusarai | Post Office - PO |
| 114 | Bazidpur | Danauli Phulwaria BO | 📍 851211 | Balia | Branch Post Office |
| 115 | Bazidpur Janki Ram | Amjadpur Pidhauli BO | 📍 851133 | Teghra | Branch Post Office |
| 116 | Bazidpur Jankiram | Amjadpur Pidhauli BO | 📍 851133 | Teghra | Branch Post Office |
| 117 | Bedaulia | Meghaul SO | 📍 848202 | Khudabandpur | Post Office - PO |
| 118 | Begam Sarai | Bachhawara SO | 📍 851111 | Bachhwara | Post Office - PO |
| 119 | Begampur | Khodabandpur BO | 📍 848202 | Khudabandpur | Branch Post Office |
| 120 | Begampur | Barra BO | 📍 848210 | Khudabandpur | Branch Post Office |
| 121 | Begampur | Chhatauna BO | 📍 851130 | Naokothi | Branch Post Office |
| 122 | Begusarai | Begusarai Court SO | 📍 851101 | Begusarai | Post Office - PO |
| 123 | Begusarai | Sri Ram Press SO | 📍 851101 | Begusarai | Post Office - PO |
| 124 | Begusarai | G.D.College Road SO | 📍 851101 | Begusarai | Post Office - PO |
| 125 | Bejaha | Dunhi BO | 📍 848204 | Garhpura | Branch Post Office |
| 126 | Beltar | Bachhawara SO | 📍 851111 | Bachhwara | Post Office - PO |
| 127 | Benga | Chhourahi BO | 📍 848202 | Chhorahi | Branch Post Office |
| 128 | BHAGATPUR | Bhagatpur BO | 📍 851211 | Balia | Branch Post Office |
| 129 | Bhagwanpur | Rupasbaj BO | 📍 851111 | Bachhwara | Branch Post Office |
| 130 | Bhagwanpur | Bhagwanpur SO | 📍 851120 | Teghra | Post Office - PO |
| 131 | Bhagwanpur | Mehdauli BO | 📍 851120 | Bhagwanpur | Post Office - PO |
| 132 | Bhagwanpur | Danauli Phulwaria BO | 📍 851211 | Balia | Branch Post Office |
| 133 | Bhagwatpur | Gokhle Nagar Bishanpur BO | 📍 851211 | Balia | Branch Post Office |
| 134 | Bhagwatpur Teai | Takiadadpur BO | 📍 851133 | Bhagwanpur | Branch Post Office |
| 135 | Bhansi | Kumharson BO | 📍 848204 | Garhpura | Branch Post Office |
| 136 | Bharaul | Rudauli BO | 📍 851111 | Bachhwara | Branch Post Office |
| 137 | Bharra | Suja BO | 📍 851218 | Begusarai | Branch Post Office |
| 138 | Bharwar | Bhairwar BO | 📍 851129 | Begusarai | Branch Post Office |
| 139 | Bhaskara | Khizirchak BO | 📍 851112 | Barauni | Branch Post Office |
| 140 | Bhawanandpur | Panapur BO | 📍 851127 | Birpur | Branch Post Office |
| 141 | Bhawanandpur | Gokhle Nagar Bishanpur BO | 📍 851211 | Balia | Branch Post Office |
| 142 | Bhawanipur | Mansurchak SO | 📍 851128 | Mansurchak | Post Office - PO |
| 143 | Bhikhan Chak | Bachhawara SO | 📍 851111 | Bachhwara | Post Office - PO |
| 144 | Bhoja | Bhoja BO | 📍 848202 | Chhorahi | Branch Post Office |
| 145 | Bhuindhara | Gamharia BO | 📍 848201 | Garhpura | Branch Post Office |
| 146 | Bihat | Bihat SO | 📍 851135 | Barauni | Post Office - PO |
| 147 | Bijai Narayan | Dunhi BO | 📍 848204 | Garhpura | Branch Post Office |
| 148 | Bikrampur | Bikrampur BO | 📍 851132 | Cheria Bariarpur | Branch Post Office |
| 149 | Binalpur | Hariharpur BO | 📍 851133 | Teghra | Branch Post Office |
| 150 | Bindpur | Parna BO | 📍 851131 | Begusarai | Branch Post Office |