| Post Office | Pin Code |
| Ajhrail BO Pin Code | 854317 |
| Amdabad SO Pin Code | 854112 |
| Arihiana BO Pin Code | 855114 |
| Awadpur BO Pin Code | 855102 |
| Ayodhyaganj Bazar SO Pin Code | 854101 |
| Azamnagar BO Pin Code | 855113 |
| Babhani BO Pin Code | 855105 |
| Baghwa BO Pin Code | 854317 |
| Baina BO Pin Code | 854116 |
| Bairia BO Pin Code | 854113 |
| Bakharganj BO Pin Code | 854113 |
| Balia Belon BO Pin Code | 855113 |
| Balthi Maheshpur BO Pin Code | 854101 |
| Baltor BO Pin Code | 855113 |
| Balupara BO Pin Code | 854317 |
| Bansgarha BO Pin Code | 854115 |
| Bareta BO Pin Code | 854114 |
| Barsoi SO Pin Code | 855102 |
| Barsoighat SO Pin Code | 854317 |
| Basantpur BO Pin Code | 854114 |
| Bastaul BO Pin Code | 854116 |
| Bathna BO Pin Code | 854317 |
| BBalrampur BO Pin Code | 854317 |
| BDeora BO Pin Code | 854113 |
| Belbari BO Pin Code | 855113 |
| Belwa BO Pin Code | 854107 |
| Bhaisdiara BO Pin Code | 854104 |
| Bhandartal BO Pin Code | 854104 |
| Bhangaha BO Pin Code | 854114 |
| Bharri BO Pin Code | 855105 |
| Bhatwara BO Pin Code | 854108 |
| Bighor BO Pin Code | 854317 |
| Bijaili BO Pin Code | 855114 |
| Binjee BO Pin Code | 854115 |
| Bishanpur BO Pin Code | 854104 |
| Bishanpurhariabhir BO Pin Code | 854115 |
| Bokia BO Pin Code | 854104 |
| BSimaria BO Pin Code | 854106 |
| Budhnagar BO Pin Code | 854107 |
| Chakmaka BO Pin Code | 854113 |
| Chandpur BO Pin Code | 854101 |
| Chandpur BO Pin Code | 855105 |
| Chapahari BO Pin Code | 854101 |
| Chhoghra BO Pin Code | 855102 |
| Chhohar BO Pin Code | 854114 |
| Chouki Hajipur BO Pin Code | 855105 |
| Daharia Molls SO Pin Code | 854103 |
| Dalan BO Pin Code | 854106 |
| Dandkhora BO Pin Code | 855114 |
| Dangal BO Pin Code | 854317 |
| Dasgram BO Pin Code | 855102 |
| Dhachna BO Pin Code | 854317 |
| Dhanetha BO Pin Code | 854108 |
| Dharhan BO Pin Code | 854116 |
| Dhena Bagchhata BO Pin Code | 854116 |
| Dhenuabishanpur BO Pin Code | 854104 |
| Dhumnagar BO Pin Code | 855113 |
| Dighri BO Pin Code | 854106 |
| Dilarpur BO Pin Code | 854113 |
| Dilli Diwanganj BO Pin Code | 854117 |
| Dumar BO Pin Code | 854104 |
| Dumaria BO Pin Code | 855114 |
| Durgaganj SO Pin Code | 855105 |
| Durgapur BO Pin Code | 854113 |
| Durgapur SO Pin Code | 854105 |
| Dwasi BO Pin Code | 855105 |
| Falka BO Pin Code | 854114 |
| Fatehpur BO Pin Code | 854335 |
| Gaualtoli BO Pin Code | 855102 |
| Gauripur BO Pin Code | 854116 |
| Gopalpur Diara BO Pin Code | 854113 |
| Goriar BO Pin Code | 854101 |
| Gunjan BO Pin Code | 854317 |
| Gurubazar SO Pin Code | 854104 |
| Hasimpur BO Pin Code | 854104 |
| Hat Balrampur BO Pin Code | 855102 |
| Hemkunj BO Pin Code | 854113 |
| Jagdishpur BO Pin Code | 854115 |
| Jalki BO Pin Code | 855102 |
| Jarlahi BO Pin Code | 854104 |
| Jhagruchak BO Pin Code | 854108 |
| Jhawa BO Pin Code | 855113 |
| Jot Ram Roy BO Pin Code | 854104 |
| Kabar BO Pin Code | 854115 |
| Kadwa BO Pin Code | 855114 |
| Kahariah BO Pin Code | 853204 |
| Kant Nagar BO Pin Code | 854104 |
| Kantakosh BO Pin Code | 854113 |
| Karha Gola Road BO Pin Code | 854104 |
| Katihar Bara Bazar SO Pin Code | 854105 |
| Katihar Bmp Camp SO Pin Code | 854106 |
| Katihar Colony SO Pin Code | 854105 |
| Katihar Court SO Pin Code | 854109 |
| Katihar HO Pin Code | 854105 |
| Katihar Mill SO Pin Code | 854107 |
| Katihar Rs SO Pin Code | 854105 |
| Kehunia BO Pin Code | 854116 |
| Khaira BO Pin Code | 854101 |
| Kharsouta BO Pin Code | 855113 |
| Kheria BO Pin Code | 854108 |
| Khirdirpur BO Pin Code | 855102 |
| Kirora BO Pin Code | 854317 |
| KN Guru Mela BO Pin Code | 854104 |
| Korha SO Pin Code | 854108 |
| Kumaripur BO Pin Code | 854103 |
| Kuretha' BO Pin Code | 854107 |
| Kurselababra BO Pin Code | 855113 |
| Kurum BO Pin Code | 854317 |
| Laxmipur BO Pin Code | 854104 |
| Madarichak BO Pin Code | 854113 |
| Madhopur BO Pin Code | 854317 |
| Madhura BO Pin Code | 854107 |
| Mahadevpur SO (Katihar) Pin Code | 854116 |
| Mahaur BO Pin Code | 854116 |
| Mahinagar BO Pin Code | 854317 |
| Mahishal BO Pin Code | 854317 |
| Mainanagar BO Pin Code | 854116 |
| Manihari Nawabganj BO Pin Code | 854113 |
| Manihari SO Pin Code | 854113 |
| Manman BO Pin Code | 854317 |
| Mansahi BO Pin Code | 854103 |
| Maraghia BO Pin Code | 854104 |
| Marwa BO Pin Code | 854104 |
| Marwa BO Pin Code | 854317 |
| Mathurapur BO Pin Code | 855102 |
| Millik Palagarh BO Pin Code | 855114 |
| Morsanda BO Pin Code | 854108 |
| Moula Nagar BO Pin Code | 854101 |
| MTDevipur BO Pin Code | 854101 |
| Mukuriya BO Pin Code | 854317 |
| Musapur BO Pin Code | 854108 |
| Nandgola BO Pin Code | 854101 |
| Narayanpur BO Pin Code | 854113 |
| Neema BO Pin Code | 854117 |
| Nimoul BO Pin Code | 855102 |
| Nimoul BO Pin Code | 855113 |
| Paharpur BO Pin Code | 854113 |
| Pakahara BO Pin Code | 854104 |
| Palsa BO Pin Code | 854116 |
| Pani Kamla BO Pin Code | 854113 |
| Pardiara BO Pin Code | 854113 |
| Parveli BO Pin Code | 855105 |
| Pawai BO Pin Code | 854104 |
| Phatepur BO Pin Code | 854317 |
| Pirmokam BO Pin Code | 854114 |
| Porla BO Pin Code | 855102 |
| Pothia SO Pin Code | 854114 |
| Pranpur BO Pin Code | 854116 |
| Puranaganj BO Pin Code | 854317 |
| Regheli BO Pin Code | 855114 |
| RNBaulia BO Pin Code | 854113 |
| Rosna SO Pin Code | 854117 |
| Rounia BO Pin Code | 854104 |
| Sadapur BO Pin Code | 855113 |
| Sagrath BO Pin Code | 855105 |
| Sahja BO Pin Code | 854107 |
| Salepur BO Pin Code | 854114 |
| Salmari SO Pin Code | 855113 |
| Samda BO Pin Code | 854104 |
| Sameli BO Pin Code | 854101 |
| Sandalpur BO Pin Code | 854106 |
| Sankola BO Pin Code | 855102 |
| Sauriya BO Pin Code | 854107 |
| Semapur Factory SO Pin Code | 854115 |
| Shipur BO Pin Code | 855113 |
| Shitalpur Onkar BO Pin Code | 854317 |
| Shivananpur BO Pin Code | 855102 |
| Sikat BO Pin Code | 854115 |
| Siktia BO Pin Code | 855113 |
| Simra BO Pin Code | 854101 |
| Sirnia BO Pin Code | 854103 |
| Sisia BO Pin Code | 854108 |
| Sitalmani BO Pin Code | 855102 |
| Sonali SO Pin Code | 855114 |
| Sudhani RS BO Pin Code | 854317 |
| Sujapur BO Pin Code | 854115 |
| Sukhasan BO Pin Code | 854107 |
| Tangore BO Pin Code | 854116 |
| Teghra BO Pin Code | 855113 |
| Telta BO Pin Code | 854317 |
| Tikapatti BO Pin Code | 854101 |
| Tingahhia BO Pin Code | 854103 |
| TM Baghar BO Pin Code | 854113 |
