| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 301 | Ikra | Lohargarha BO | 📍 855101 | Dighalbank | Branch Post Office |
| 302 | Ikra Milik | Lohargarha BO | 📍 855101 | Dighalbank | Branch Post Office |
| 303 | Indarpur | Raipur BO | 📍 855107 | Pothia | Branch Post Office |
| 304 | Indarpur Khurd | Chattar Gachhi BO | 📍 855117 | Pothia | Branch Post Office |
| 305 | Jadhail | Dogharia BO | 📍 855115 | Kochadhamin | Branch Post Office |
| 306 | Jagir Gachh | Powakhali BO | 📍 855108 | Pothia | Branch Post Office |
| 307 | Jahangirpur | Panasihat BO | 📍 855117 | Pothia | Branch Post Office |
| 308 | Jalalpur | Taiyabpur SO | 📍 855117 | Pothia | Post Office - PO |
| 309 | Janamjai | Kishanganj SO | 📍 855107 | Kishanganj | Post Office - PO |
| 310 | Jangiabari | Poth RS BO | 📍 855117 | Pothia | Branch Post Office |
| 311 | Jhala | Jhala BO | 📍 855101 | Terhagachh | Branch Post Office |
| 312 | Jhantipari Anarkali | Modho BO | 📍 855115 | Kochadhamin | Branch Post Office |
| 313 | Jharbari | Toesa BO | 📍 855107 | Kishanganj | Branch Post Office |
| 314 | Jhiljhili | Bahadurganj SO Kishanganj | 📍 855101 | Bahadurganj | Post Office - PO |
| 315 | Jhingakata | Laucha BO | 📍 855101 | Bahadurganj | Branch Post Office |
| 316 | Jhingakata Istamrar | Laucha BO | 📍 855101 | Bahadurganj | Branch Post Office |
| 317 | Jhingakata Taufir | Laucha BO | 📍 855101 | Bahadurganj | Branch Post Office |
| 318 | Jhokha Dangi | Poth RS BO | 📍 855117 | Pothia | Branch Post Office |
| 319 | Jhunki Musahara | Tehragachh BO | 📍 855101 | Terhagachh | Post Office - PO |
| 320 | Jhura | Dogharia BO | 📍 855115 | Kochadhamin | Branch Post Office |
| 321 | Jia Gachhi | Kishanganj SO | 📍 855107 | Kishanganj | Post Office - PO |
| 322 | Jiapokhar | Jia pokhar BO | 📍 855108 | Thakurganj | Branch Post Office |
| 323 | Jio Pokhar | Thakurganj SO | 📍 855116 | Thakurganj | Post Office - PO |
| 324 | Jirangachh | Jirangachhi BO | 📍 855116 | Thakurganj | Branch Post Office |
| 325 | Jiwanpur | Singhari BO | 📍 855115 | Kochadhamin | Branch Post Office |
| 326 | Jiyapokhar | Kishanganj Bazar SO | 📍 855108 | Kishanganj | Post Office - PO |
| 327 | Jogi Gachh | Poth RS BO | 📍 855117 | Pothia | Branch Post Office |
| 328 | Jogihara | Poth RS BO | 📍 855117 | Pothia | Branch Post Office |
| 329 | Kabaia | Dogharia BO | 📍 855115 | Kochadhamin | Branch Post Office |
| 330 | Kachhudah | Ruidhasa BO | 📍 855116 | Thakurganj | Branch Post Office |
| 331 | Kachunala | Mangura BO | 📍 855101 | Dighalbank | Branch Post Office |
| 332 | Kachunala Milik | Mangura BO | 📍 855101 | Dighalbank | Branch Post Office |
| 333 | Kachunala Milik | Tulsia BO | 📍 855101 | Dighalbank | Branch Post Office |
| 334 | Kadleta | Matiari BO | 📍 855101 | Terhagachh | Branch Post Office |
| 335 | Kairbirpur | Bishanpur BO | 📍 855101 | Kochadhamin | Branch Post Office |
| 336 | Kala Singhia | Raipur BO | 📍 855107 | Pothia | Branch Post Office |
| 337 | Kalakachu | Khatia Pichhia BO | 📍 855117 | Pothia | Branch Post Office |
| 338 | Kalanagin | Altahat BO | 📍 855107 | Kochadhamin | Branch Post Office |
| 339 | Kalidas | Poth RS BO | 📍 855117 | Pothia | Branch Post Office |
| 340 | Kalidas Arazi kismat | Poth RS BO | 📍 855117 | Pothia | Branch Post Office |
| 341 | Kalidas Kismat | Poth RS BO | 📍 855117 | Pothia | Branch Post Office |
| 342 | Kalkali | Patkoihat BO | 📍 855107 | Kochadhamin | Branch Post Office |
| 343 | Kalpir | Bibiganj BO | 📍 855101 | Terhagachh | Branch Post Office |
| 344 | Kalpir Pathar Ghatti | Bibiganj BO | 📍 855101 | Dighalbank | Branch Post Office |
| 345 | Kalupathaurf Koimari | Poth RS BO | 📍 855117 | Pothia | Branch Post Office |
| 346 | Kamat | Lohargarha BO | 📍 855101 | Dighalbank | Branch Post Office |
| 347 | Kamat Hatgaon | Tehragachh BO | 📍 855101 | Terhagachh | Post Office - PO |
| 348 | Kamati | Tarabari BO | 📍 855108 | Dighalbank | Branch Post Office |
| 349 | Kamdti Nankar | Jhala BO | 📍 855101 | Terhagachh | Branch Post Office |
| 350 | Kanakpur | Gunjanmari BO | 📍 855116 | Thakurganj | Branch Post Office |