| Post Office | Pin Code |
| Altahat BO Pin Code | 855107 |
| Angarhat BO Pin Code | 855115 |
| Asja BO Pin Code | 855107 |
| Bagalbari BO Pin Code | 855107 |
| Bahadurganj SO (Kishanganj) Pin Code | 855101 |
| Baigna BO Pin Code | 855101 |
| Bairia BO Pin Code | 855101 |
| Bangama BO Pin Code | 855101 |
| BB Bharatpur BO Pin Code | 855108 |
| Belwa BO Pin Code | 855107 |
| Bharadah BO Pin Code | 855101 |
| Bhawaniganj BO Pin Code | 855116 |
| Bhittabari BO Pin Code | 855101 |
| Bholmara BO Pin Code | 855108 |
| Bibiganj BO Pin Code | 855101 |
| Bishanpur BO Pin Code | 855101 |
| Chakalaghat BO Pin Code | 855107 |
| Chanamana BO Pin Code | 855117 |
| Chhatargachi BO Pin Code | 855117 |
| Churli BO Pin Code | 855116 |
| Daluahat BO Pin Code | 855117 |
| Dhangarha BO Pin Code | 855101 |
| Dhanpatganj BO Pin Code | 855115 |
| Dhantola BO Pin Code | 855101 |
| Dhusmalhat BO Pin Code | 855107 |
| Dighalbank BO Pin Code | 855101 |
| Dogharia BO Pin Code | 855115 |
| Fatehpur BO Pin Code | 855101 |
| Galgalia SO Pin Code | 855106 |
| Gangi BO Pin Code | 855107 |
| GMBathna BO Pin Code | 855107 |
| Gunjanmari BO Pin Code | 855116 |
| Haldikhora BO Pin Code | 855115 |
| Hulhuli BO Pin Code | 855116 |
| Jhala BO Pin Code | 855101 |
| Jirangachhi BO Pin Code | 855116 |
| Jiyapokhar BO Pin Code | 855108 |
| Kanalyabarihat BO Pin Code | 855107 |
| Kansibarihat BO Pin Code | 855107 |
| Karhabari BO Pin Code | 855101 |
| Kharudah BO Pin Code | 855107 |
| Khatia Pichhia BO Pin Code | 855117 |
| Khodaganj BO Pin Code | 855108 |
| Kishanganj Bazar SO Pin Code | 855108 |
| Kishanganj SO Pin Code | 855107 |
| Kochadhaman BO Pin Code | 855115 |
| Kuttigola BO Pin Code | 855107 |
| Laucha BO Pin Code | 855101 |
| Lohargarha BO Pin Code | 855101 |
| Mahesh Batna BO Pin Code | 855101 |
| Mangura BO Pin Code | 855101 |
| Maria BO Pin Code | 855117 |
| Matiari BO Pin Code | 855101 |
| Meharganj BO Pin Code | 855108 |
| Mirjapur BO Pin Code | 855117 |
| Mirpur BO Pin Code | 855115 |
| Modho BO Pin Code | 855115 |
| Nainagachhi BO Pin Code | 855116 |
| Natuapara BO Pin Code | 855107 |
| Nishaangara BO Pin Code | 855101 |
| Padampur BO Pin Code | 855108 |
| Pahar Katta BO Pin Code | 855117 |
| Panasihat BO Pin Code | 855117 |
| Pathamari BO Pin Code | 855116 |
| Patharia BO Pin Code | 855116 |
| Patkoihat BO Pin Code | 855107 |
| Piprithan BO Pin Code | 855116 |
| Piyajee BO Pin Code | 855107 |
| Poth RS BO Pin Code | 855117 |
| Powakhali BO Pin Code | 855108 |
| PThakurbari BO Pin Code | 855117 |
| Raipur BO Pin Code | 855107 |
| Ruidhasa BO Pin Code | 855116 |
| Runki' BO Pin Code | 855107 |
| Rupani BO Pin Code | 855101 |
| Sameswar BO Pin Code | 855101 |
| Saraikuri BO Pin Code | 855108 |
| Shishabari BO Pin Code | 855115 |
| Singhari BO Pin Code | 855115 |
| Singhia BO Pin Code | 855107 |
| Sirsi BO Pin Code | 855107 |
| Sitalpur BO Pin Code | 855117 |
| Sontha SO Pin Code | 855115 |
| Taiyabpur SO Pin Code | 855117 |
| Tarabari BO Pin Code | 855108 |
| Tehragachh BO Pin Code | 855101 |
| Thakurganj SO Pin Code | 855116 |
| Thiraniganj BO Pin Code | 855101 |
| Toesa BO Pin Code | 855107 |
| Tulsia BO Pin Code | 855101 |
