| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 651 | Kuari | Majhaulia Estate SO | 📍 843322 | Bathnaha | Post Office - PO |
| 652 | Kuari | Baghari BO | 📍 843323 | Sursand | Branch Post Office |
| 653 | Kuari | Baghari BO | 📍 843331 | Sursand | Branch Post Office |
| 654 | Kuari Madan | K.Madan BO | 📍 843332 | Majorganj | Branch Post Office |
| 655 | Kumargawan | Singrahiya BO | 📍 843317 | Bathnaha | Branch Post Office |
| 656 | Kumhra Bishunpur | K. Bishanpur BO | 📍 843323 | Dumra | Branch Post Office |
| 657 | Kumma | Kumma BO | 📍 843331 | Sursand | Branch Post Office |
| 658 | Kumma | Sursand SO | 📍 843331 | Sursand | Post Office - PO |
| 659 | Kundal urf Gurgawan | Mahindwara BO | 📍 843117 | Runisaidpur | Branch Post Office |
| 660 | Kurhar | Dhadhi BO | 📍 843333 | Bokhara | Branch Post Office |
| 661 | Kurwa Fatehpur Chhapra | Jamua BO | 📍 843313 | Bairgania | Branch Post Office |
| 662 | Kusail | Bachharpur BO | 📍 843320 | Pupri | Branch Post Office |
| 663 | Kusail | B. Dharmapur BO | 📍 843320 | Pupri | Branch Post Office |
| 664 | Kusumari | Rewasi BO | 📍 843327 | Riga | Branch Post Office |
| 665 | Lacchua | Mahuawa BO | 📍 843331 | Sursand | Branch Post Office |
| 666 | Lachhmipur | Bhutahi SO | 📍 843317 | Sonbarsa | Post Office - PO |
| 667 | Lachhmipur | Mayurwa BO | 📍 843330 | Sonbarsa | Branch Post Office |
| 668 | Ladahuri urf Narphora | Sardalpatti BO | 📍 843324 | Parihar | Branch Post Office |
| 669 | Laduari | Sardalpatti BO | 📍 843324 | Parihar | Branch Post Office |
| 670 | Laduari | Sutihara BO | 📍 843331 | Parihar | Branch Post Office |
| 671 | Lakhmipur | Bhadiyan BO | 📍 843333 | Nanpur | Branch Post Office |
| 672 | Lalpur | Lalpur BO | 📍 843323 | Runisaidpur | Branch Post Office |
| 673 | Lalpur | Manikchowk SO | 📍 843323 | Runisaidpur | Post Office - PO |
| 674 | Laptaha Lagunia | Jagdar BO | 📍 843324 | Parihar | Branch Post Office |
| 675 | Latipur | Lattipur BO | 📍 843322 | Bathnaha | Branch Post Office |
| 676 | Lauharia | Jagdar BO | 📍 843324 | Parihar | Branch Post Office |
| 677 | Lauhdiah | Parmanandpur BO | 📍 843302 | Dumra | Branch Post Office |
| 678 | Lauhdiah | Sitamarhi Bazar SO | 📍 843302 | Dumra | Post Office - PO |
| 679 | Lohadih | Bishanpur BO | 📍 843302 | Dumra | Branch Post Office |
| 680 | Lohansi urf Gosainpur | Partapur BO | 📍 843311 | Belsand | Branch Post Office |
| 681 | Lokhar | Bhutahi SO | 📍 843317 | Sonbarsa | Post Office - PO |
| 682 | Lokhar | Haribela BO | 📍 843317 | Sonbarsa | Branch Post Office |
| 683 | Loknathpur | Humayupur BO | 📍 843333 | Bajpatti | Branch Post Office |
| 684 | Madan Madhopur | Athri SO | 📍 843311 | Runisaidpur | Post Office - PO |
| 685 | Madan Madhopur | Thahar BO | 📍 843328 | Runisaidpur | Branch Post Office |
| 686 | Madanpatti | Dighi BO | 📍 843322 | Bathnaha | Branch Post Office |
| 687 | Madanpatti | Majhaulia Estate SO | 📍 843322 | Bathnaha | Post Office - PO |
| 688 | Madanpatti | Panthpakar BO | 📍 843322 | Bathnaha | Branch Post Office |
| 689 | Madanpur | Sitamarhi Bazar SO | 📍 843302 | Dumra | Post Office - PO |
| 690 | Madanpur | R.Gosaipur BO | 📍 843302 | Dumra | Branch Post Office |
| 691 | Madanpur | Madanpur BO | 📍 843325 | Dumra | Branch Post Office |
| 692 | Madanpur urf MadanpurBishunath | Madanpur BO | 📍 843325 | Parsauni | Branch Post Office |
| 693 | Madaripur Sirimanpur | Madaripur BO | 📍 843333 | Bajpatti | Branch Post Office |
| 694 | Madh Kaul | Belsand SO | 📍 843316 | Belsand | Post Office - PO |
| 695 | Madh Kaul | Jaffarpur BO | 📍 843316 | Belsand | Branch Post Office |
| 696 | Madh Kaul | Kansar BO | 📍 843316 | Belsand | Branch Post Office |
| 697 | Madhaulsani | P. Tajpur BO | 📍 843316 | Runisaidpur | Branch Post Office |
| 698 | Madhesra | Bhutahi SO | 📍 843317 | Sonbarsa | Post Office - PO |
| 699 | Madhesra | Hanuman Nagar BO | 📍 843317 | Sonbarsa | Branch Post Office |
| 700 | Madhopur | Athri SO | 📍 843311 | Runisaidpur | Post Office - PO |