| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 401 | Dibraghani | Dibra BO | 📍 854203 | Barhara | Branch Post Office |
| 402 | Dighaunch | Baisi SO | 📍 854315 | Baisa | Post Office - PO |
| 403 | Diha | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 404 | Dihia | Sadhubeli BO | 📍 854304 | Jalalgarh | Branch Post Office |
| 405 | Dihia | Amour BO | 📍 854315 | Amour | Branch Post Office |
| 406 | Dihia | Jalalgarh SO | 📍 854327 | Jalalgarh | Post Office - PO |
| 407 | Dilia Hasanabad | Gulabbagh SO | 📍 854326 | Purnia East | Post Office - PO |
| 408 | Dimia | Gairah BO | 📍 854325 | Jalalgarh | Branch Post Office |
| 409 | Dimia Chhatarjan | Harda BO | 📍 854303 | Purnia East | Branch Post Office |
| 410 | Dobha | Dobha BO | 📍 854204 | Rupauli | Branch Post Office |
| 411 | Dobha Milik | Dobha BO | 📍 854204 | Rupauli | Branch Post Office |
| 412 | Dogharia | Khoksa BO | 📍 854315 | Baisi | Branch Post Office |
| 413 | Dogharia | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 414 | Dogharia | Tolikola BO | 📍 854330 | Amour | Branch Post Office |
| 415 | Dolmalpur | Rautahat BO | 📍 854315 | Amour | Branch Post Office |
| 416 | Domohani | Shishabari BO | 📍 855115 | Baisa | Branch Post Office |
| 417 | Doria | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 418 | Duba | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 419 | Dubaili | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 420 | Dube Chakla | Banaili SO | 📍 854201 | Krityanand Nagar | Post Office - PO |
| 421 | Dukrail | Gairah BO | 📍 854325 | Jalalgarh | Branch Post Office |
| 422 | Dumaria | Chapahari BO | 📍 854101 | Bhawanipur | Branch Post Office |
| 423 | Dumaria | Parasmani BO | 📍 854306 | Dhamdaha | Branch Post Office |
| 424 | Dumaria Chakla | Parasmani BO | 📍 854306 | Dhamdaha | Branch Post Office |
| 425 | Dumaria tola | Dhamdaha SO | 📍 854205 | Dhamdaha | Post Office - PO |
| 426 | Dumra | Dumar BO | 📍 854104 | Bhawanipur | Branch Post Office |
| 427 | Dumra | Khokha BO | 📍 854304 | Jalalgarh | Branch Post Office |
| 428 | Dumra | Machhatta BO | 📍 854315 | Baisi | Branch Post Office |
| 429 | Dumra | Machhela BO | 📍 854325 | Amour | Branch Post Office |
| 430 | Dumra | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 431 | Dumra Mahabal | Dumra BO | 📍 854204 | Bhawanipur | Branch Post Office |
| 432 | Dumra Mahabal Milik | Dumar BO | 📍 854104 | Bhawanipur | Branch Post Office |
| 433 | Dumra Mahabal Milik | Dumra BO | 📍 854204 | Bhawanipur | Branch Post Office |
| 434 | Dumrail Chakla | Jhalari BO | 📍 854204 | Rupauli | Branch Post Office |
| 435 | Dumrail Drap | Dumra BO | 📍 854204 | Bhawanipur | Branch Post Office |
| 436 | Dumrail Milik | Dumra BO | 📍 854204 | Bhawanipur | Branch Post Office |
| 437 | Dumrail Milik | Balla BO | 📍 854204 | Bhawanipur | Branch Post Office |
| 438 | Dumri | Majgama BO | 📍 854330 | Amour | Branch Post Office |
| 439 | Durgapur | Durgapur BO | 📍 854204 | Bhawanipur | Branch Post Office |
| 440 | Durgapur | Garhbanaili SO | 📍 854325 | Kasba | Post Office - PO |
| 441 | Durgapur | Ranipatra SO | 📍 854337 | Purnia East | Post Office - PO |
| 442 | Ekamba | Ekamba Hishara BO | 📍 854327 | Jalalgarh | Branch Post Office |
| 443 | Ekauna | Dhamdaha SO | 📍 854205 | Dhamdaha | Post Office - PO |
| 444 | Ekraha | Ekraha BO | 📍 854102 | Banmankhi | Branch Post Office |
| 445 | Ekraha Milik | Ekraha BO | 📍 854102 | Banmankhi | Branch Post Office |
| 446 | Etha Pokhar | Garhbanaili SO | 📍 854325 | Kasba | Post Office - PO |
| 447 | Fakirana | Banmankhi SO | 📍 854202 | Banmankhi | Post Office - PO |
| 448 | Fakirtoli | Asja Mobaiya BO | 📍 854315 | Amour | Branch Post Office |
| 449 | Farsadenga | Asja Mobaiya BO | 📍 854315 | Amour | Branch Post Office |
| 450 | Fatehpur | Madarghat BO | 📍 854330 | Kasba | Branch Post Office |