| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 701 | Kilpara Khurd | Dhusmalhat BO | 📍 855107 | Baisa | Branch Post Office |
| 702 | kishunpur | Champabati BO | 📍 854306 | Krityanand Nagar | Branch Post Office |
| 703 | Kishunpur | Bhogabhatgama BO | 📍 854337 | Purnia East | Branch Post Office |
| 704 | Kishunpur Balua | Madhonagar BO | 📍 854204 | Dhamdaha | Branch Post Office |
| 705 | Kishunpur Balua | Sarsi SO | 📍 854306 | Dhamdaha | Post Office - PO |
| 706 | kishunpur Balua milik | Dhamdaha SO | 📍 854205 | Dhamdaha | Post Office - PO |
| 707 | Kishunpur Balua milik | Sarsi SO | 📍 854306 | Dhamdaha | Post Office - PO |
| 708 | Kochagaon | Baisi SO | 📍 854315 | Baisi | Post Office - PO |
| 709 | kochaili | Barsauni BO | 📍 854326 | Dagarua | Branch Post Office |
| 710 | Kochaili | Majhuakala BO | 📍 854330 | Amour | Branch Post Office |
| 711 | Kochali | Barsauni BO | 📍 854326 | Dagarua | Branch Post Office |
| 712 | Kochka Kishunpur | Machhatta BO | 📍 854315 | Amour | Branch Post Office |
| 713 | Kodai Patti | Bhatsara BO | 📍 854203 | Bhawanipur | Branch Post Office |
| 714 | Kohabara | Talbari BO | 📍 854315 | Amour | Branch Post Office |
| 715 | Kohila | Mahalbari BO | 📍 854326 | Dagarua | Branch Post Office |
| 716 | Koili Semra | Simra BO | 📍 854101 | Rupauli | Branch Post Office |
| 717 | Kolha | Haldikhora BO | 📍 855115 | Baisa | Branch Post Office |
| 718 | Kolha Mohan | Machhatta BO | 📍 854315 | Amour | Branch Post Office |
| 719 | Kolsalta | Hafania BO | 📍 854315 | Amour | Branch Post Office |
| 720 | Kolsaranpur | Amour BO | 📍 854315 | Amour | Branch Post Office |
| 721 | Kooli Tola | Khuskibagh SO | 📍 854305 | Purnia East | Post Office - PO |
| 722 | Korhaili | Barsauni BO | 📍 854326 | Dagarua | Branch Post Office |
| 723 | Krityanand Nagar | Khemchand BO | 📍 854304 | Krityanand Nagar | Branch Post Office |
| 724 | kuari | Kurigola BO | 📍 854205 | Dhamdaha | Branch Post Office |
| 725 | Kukraun | Kukraon BO | 📍 854204 | Dhamdaha | Branch Post Office |
| 726 | kukraun | Amarikukroan BO | 📍 854205 | Dhamdaha | Branch Post Office |
| 727 | Kukraun Milik | Kukraon BO | 📍 854204 | Dhamdaha | Branch Post Office |
| 728 | Kula Bhagwati | Kulla Kahs BO | 📍 854330 | Kasba | Branch Post Office |
| 729 | Kula Khas | Kulla Kahs BO | 📍 854330 | Kasba | Branch Post Office |
| 730 | Kulasundar | Kulla Kahs BO | 📍 854330 | Kasba | Branch Post Office |
| 731 | Kumharua | Jhawari BO | 📍 854330 | Amour | Branch Post Office |
| 732 | Kunaili | Barsauni BO | 📍 854326 | Dagarua | Branch Post Office |
| 733 | Kundalay | Bochgaon BO | 📍 854330 | Kasba | Branch Post Office |
| 734 | Kusaha Milik | Jabe BO | 📍 854204 | Bhawanipur | Branch Post Office |
| 735 | Lachhimipur Girdhar | Laxmipurgirdhar BO | 📍 853204 | Rupauli | Branch Post Office |
| 736 | Lachhimipur Girdhar | Rupauli BO | 📍 854204 | Rupauli | Branch Post Office |
| 737 | Lachhmipur | Dobha BO | 📍 854204 | Rupauli | Branch Post Office |
| 738 | Lachhmipur | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 739 | Ladua | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 740 | Ladugarh | Ladugarh BO | 📍 854202 | Banmankhi | Branch Post Office |
| 741 | Ladukhana | Srinagar BO | 📍 854304 | Srinagar | Branch Post Office |
| 742 | Lagan | Bharmara BO | 📍 854330 | Kasba | Branch Post Office |
| 743 | Lakhan Jhari | Gulabbagh SO | 📍 854326 | Purnia East | Post Office - PO |
| 744 | Lakhna | Majgama BO | 📍 854330 | Kasba | Branch Post Office |
| 745 | Lal Bag | Purnea City SO | 📍 854302 | Purnia East | Post Office - PO |
| 746 | Lal Dighji | Purnea City SO | 📍 854302 | Purnia East | Post Office - PO |
| 747 | Lal Man | Dagarua Hat BO | 📍 854326 | Dagarua | Branch Post Office |
| 748 | Lalchura | Hafania BO | 📍 854315 | Amour | Branch Post Office |
| 749 | Laldighi | Purnea City SO | 📍 854302 | Purnia East | Post Office - PO |
| 750 | Lalganj | Lalganj BO | 📍 854303 | Purnia East | Branch Post Office |