Kode pos Bihar
Kabupaten
38Araria 14Arwal 6Aurangabad(BH) 25Banka 19Begusarai 29Bhagalpur 28Bhojpur 37Buxar 27Darbhanga 47East Champaran 38Gaya 45Gopalganj 20Jamui 12Jehanabad 22Kaimur (Bhabua) 12Katihar 21Khagaria 15Kishanganj 7Lakhisarai 9Madhepura 20Madhubani 39Munger 15Muzaffarpur 43Nalanda 31Nawada 26Patna 69Purnia 24Rohtas 31Saharsa 15Samastipur 39Saran 48Sheikhpura 7Sheohar 6Sitamarhi 28Siwan 37Supaul 21Vaishali 32West Champaran 18