| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 451 | Kirkichia | Dholbazza BO | 📍 854318 | Forbesganj | Branch Post Office |
| 452 | Kishori Mukhia Tola | Bhawanipur BO | 📍 854336 | Narpatganj | Branch Post Office |
| 453 | Kishunpur | Chirah BO | 📍 854311 | Jokihat | Branch Post Office |
| 454 | Kismat Jamua | Jamua BO | 📍 854331 | Araria | Branch Post Office |
| 455 | kochatikkar | Araria Bairgachhi BO | 📍 854311 | Araria | Branch Post Office |
| 456 | Kochgaon | Gokhlapur BO | 📍 854335 | Narpatganj | Branch Post Office |
| 457 | Kochgawan | Rampur Kodarkatti BO | 📍 854325 | Araria | Branch Post Office |
| 458 | Koiri Tola | Araria RS SO | 📍 854312 | Araria | Post Office - PO |
| 459 | Kolhua | Kursakanta SO | 📍 854331 | Kursakatta | Post Office - PO |
| 460 | Kopari | Parmanandpur BO | 📍 854312 | Raniganj | Branch Post Office |
| 461 | Korhaili | Palasi BO | 📍 854333 | Palasi | Branch Post Office |
| 462 | kosakipur | Araria Bairgachhi BO | 📍 854311 | Araria | Branch Post Office |
| 463 | Koska Pur | Nawabganj SO Araria | 📍 854336 | Narpatganj | Post Office - PO |
| 464 | koskapur | Koskapur BO | 📍 854318 | Narpatganj | Branch Post Office |
| 465 | Koskapur | Kushkapur BO | 📍 854334 | Raniganj | Branch Post Office |
| 466 | Kotahpur | Haldarhat BO | 📍 854331 | Kursakatta | Branch Post Office |
| 467 | Kuan Pokhar | Amgachhi BO | 📍 854332 | Sikti | Branch Post Office |
| 468 | Kuari | Kuari SO | 📍 854332 | Kursakatta | Post Office - PO |
| 469 | Kuchaha | Barmasia Simarbani BO | 📍 854333 | Sikti | Branch Post Office |
| 470 | Kuchgaon | Gokhlapur BO | 📍 854335 | Narpatganj | Branch Post Office |
| 471 | Kujri | Kujari BO | 📍 854333 | Palasi | Branch Post Office |
| 472 | Kulharia Jagir | Kushmaha BO | 📍 854318 | Forbesganj | Branch Post Office |
| 473 | Kumaripur | Kursakanta SO | 📍 854331 | Kursakatta | Post Office - PO |
| 474 | Kumarkhand | Balua Deorhi BO | 📍 854311 | Palasi | Branch Post Office |
| 475 | Kumhra | Baunsi BO | 📍 854312 | Raniganj | Branch Post Office |
| 476 | Kursail | Kurshail BO | 📍 854329 | Jokihat | Branch Post Office |
| 477 | Kursakatta | Kursakanta SO | 📍 854331 | Kursakatta | Post Office - PO |
| 478 | Kurwa | Simraha BO | 📍 854318 | Forbesganj | Branch Post Office |
| 479 | Kurwa Lachhmipur | Simraha BO | 📍 854318 | Forbesganj | Branch Post Office |
| 480 | Kusamaha | Simraha BO | 📍 854318 | Forbesganj | Branch Post Office |
| 481 | Kushmaul | Kushmaul BO | 📍 854318 | Forbesganj | Branch Post Office |
| 482 | Kusiargaon | P.T.Dumraha BO | 📍 854325 | Araria | Branch Post Office |
| 483 | Kusmaul | Kushmaul BO | 📍 854318 | Bhargama | Branch Post Office |
| 484 | Lachhmipur | Hingua BO | 📍 854202 | Bhargama | Branch Post Office |
| 485 | Lachhmipur | Hansa BO | 📍 854312 | Raniganj | Branch Post Office |
| 486 | Lachhmipur | Simraha BO | 📍 854318 | Forbesganj | Branch Post Office |
| 487 | Lachhmipur | Haldarhat BO | 📍 854331 | Kursakatta | Branch Post Office |
| 488 | Lachhmipur | Nawabganj SO Araria | 📍 854336 | Narpatganj | Post Office - PO |
| 489 | Lachhmipur Gachh | Simraha BO | 📍 854318 | Forbesganj | Branch Post Office |
| 490 | Lachmipur alias Baghwa | Khajurihat BO | 📍 854334 | Bhargama | Branch Post Office |
| 491 | Lahna | Rampur Kodarkatti BO | 📍 854325 | Araria | Branch Post Office |
| 492 | Lahsunganj | Khawashpur BO | 📍 854318 | Forbesganj | Branch Post Office |
| 493 | Lakhan Singh Tola | Bhawanipur BO | 📍 854336 | Narpatganj | Branch Post Office |
| 494 | Lalia | Chakiahat BO | 📍 854329 | Jokihat | Branch Post Office |
| 495 | Lalpur Tola | Bhawanipur BO | 📍 854336 | Narpatganj | Branch Post Office |
| 496 | Laruabari | Patharbari BO | 📍 854329 | Jokihat | Branch Post Office |
| 497 | Latahri | Mirzapur BO | 📍 854312 | Raniganj | Branch Post Office |
| 498 | Laxmipur | Araria Bairgachhi BO | 📍 854311 | Araria | Branch Post Office |
| 499 | Lodipur | Jalalgarh SO | 📍 854327 | Araria | Post Office - PO |
| 500 | Lokhra | Pakri BO | 📍 854329 | Palasi | Branch Post Office |