| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 351 | Dakaili | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 352 | Dalia Basti | Ranipatra SO | 📍 854337 | Purnia East | Post Office - PO |
| 353 | Damaili | Mirganj BO | 📍 854304 | Dhamdaha | Branch Post Office |
| 354 | Damgari | Damgara BO | 📍 854202 | Dhamdaha | Branch Post Office |
| 355 | Damka | Bhogabhatgama BO | 📍 854337 | Purnia East | Branch Post Office |
| 356 | Damraha | Hafania BO | 📍 854315 | Amour | Branch Post Office |
| 357 | Dangraha | Jageli BO | 📍 854304 | Srinagar | Branch Post Office |
| 358 | Dansar | Mahalbari BO | 📍 854326 | Dagarua | Branch Post Office |
| 359 | Dansar | Ekamba Hishara BO | 📍 854327 | Jalalgarh | Branch Post Office |
| 360 | Dargahiganj | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 361 | Darha | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 362 | Dariapur | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 363 | Daripur | Majhuakala BO | 📍 854330 | Amour | Branch Post Office |
| 364 | Daspatar | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 365 | Deari | Kasba SO Purnia | 📍 854330 | Kasba | Post Office - PO |
| 366 | Debinagar | Jageli BO | 📍 854304 | Srinagar | Branch Post Office |
| 367 | Deodha | Garhbanaili SO | 📍 854325 | Kasba | Post Office - PO |
| 368 | Deori | Bhatsara BO | 📍 854203 | Barhara | Branch Post Office |
| 369 | Deori | Tolikola BO | 📍 854330 | Amour | Branch Post Office |
| 370 | Dewanganj | Ranipatra SO | 📍 854337 | Purnia East | Post Office - PO |
| 371 | Dewhari Milik | Bhawanipur Rajdham SO | 📍 854204 | Bhawanipur | Post Office - PO |
| 372 | Dhadhia | Amour BO | 📍 854315 | Amour | Branch Post Office |
| 373 | Dhadhuar | Dhanpatganj BO | 📍 855115 | Baisa | Branch Post Office |
| 374 | Dhamaili | Singhiya BO | 📍 854304 | Srinagar | Branch Post Office |
| 375 | Dhamdaha | Dhamdaha SO | 📍 854205 | Dhamdaha | Post Office - PO |
| 376 | Dhanganwan | Dagarua Hat BO | 📍 854326 | Purnia East | Branch Post Office |
| 377 | Dhanganwan Kankhudia | Sontha SO | 📍 855115 | Jalalgarh | Post Office - PO |
| 378 | Dhanhara Hat | Dabhara BO | 📍 854311 | Krityanand Nagar | Branch Post Office |
| 379 | Dhapi | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 380 | Dharambari | Sirsi BO | 📍 855107 | Baisa | Branch Post Office |
| 381 | Dharbia | Champabati BO | 📍 854306 | Dhamdaha | Branch Post Office |
| 382 | Dharhara | Dharhara Millik BO | 📍 854202 | Banmankhi | Branch Post Office |
| 383 | Dharhara Milik | Banmankhi SO | 📍 854202 | Banmankhi | Post Office - PO |
| 384 | Dharhara Milik | Dharhara Millik BO | 📍 854202 | Banmankhi | Branch Post Office |
| 385 | Dharhara Milik | Dabhara BO | 📍 854311 | Banmankhi | Branch Post Office |
| 386 | Dharhara Munahi Chakla | Hingua BO | 📍 854202 | Banmankhi | Branch Post Office |
| 387 | Dharia Karanpur | Amour BO | 📍 854315 | Amour | Branch Post Office |
| 388 | Dhathaghat | Begampur BO | 📍 854330 | Jalalgarh | Branch Post Office |
| 389 | Dhima | Dhima BO | 📍 854202 | Banmankhi | Branch Post Office |
| 390 | Dhobgidha | Rupauli BO | 📍 854204 | Rupauli | Branch Post Office |
| 391 | Dhobgidha Rupauli | Rupauli BO | 📍 854204 | Rupauli | Branch Post Office |
| 392 | Dhobia Tola | Bhawanipur Rajdham SO | 📍 854204 | Bhawanipur | Post Office - PO |
| 393 | Dhobinia | Dhanpatganj BO | 📍 855115 | Baisa | Branch Post Office |
| 394 | Dhokardhara | Bishanpur Dutt BO | 📍 854202 | Banmankhi | Branch Post Office |
| 395 | Dhurpaili | Kharaiya BO | 📍 854315 | Amour | Branch Post Office |
| 396 | Dhurup Bilas | Banmankhi SO | 📍 854202 | Banmankhi | Post Office - PO |
| 397 | Dhusar | Tikapatti BO | 📍 854101 | Rupauli | Branch Post Office |
| 398 | Dhusar Tikapatti | Tikapatti BO | 📍 854101 | Rupauli | Branch Post Office |
| 399 | Dhusmar | Southa BO | 📍 854325 | Jalalgarh | Branch Post Office |
| 400 | Dhusmar | Sontha SO | 📍 855115 | Jalalgarh | Post Office - PO |