| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 1001 | Jogia | Khaira BO | 📍 821101 | Bikramganj | Branch Post Office |
| 1002 | Jonhi | Jonhi BO | 📍 802212 | Bikramganj | Branch Post Office |
| 1003 | Jorawarpur | Baradih BO | 📍 802214 | Karakat | Branch Post Office |
| 1004 | Jorawarpur | Chandi BO | 📍 821301 | Akorhi Gola | Branch Post Office |
| 1005 | Jorawarpur Chawani | Chandi BO | 📍 821301 | Akorhi Gola | Branch Post Office |
| 1006 | Kaarmaini | Bararhi BO | 📍 821103 | Kochas | Branch Post Office |
| 1007 | Kachhawa | Kachhwa SO Rohtas | 📍 821309 | Nasriganj | Post Office - PO |
| 1008 | Kachhawa | B. Kaithi BO | 📍 821309 | Nasriganj | Branch Post Office |
| 1009 | Kachhawar | Banjari SO | 📍 821303 | Rohtas | Post Office - PO |
| 1010 | Kachnath | Barkadih BO | 📍 821113 | Sheosagar | Branch Post Office |
| 1011 | Kadjar | Sarai BO | 📍 821113 | Sasaram | Branch Post Office |
| 1012 | Kadwa | Garh Nokha SO | 📍 802215 | Nokha | Post Office - PO |
| 1013 | Kadwan | Muodihan BO | 📍 802217 | Sasaram | Branch Post Office |
| 1014 | Kaeth Bahuara | Gorari SO | 📍 802214 | Karakat | Post Office - PO |
| 1015 | Kailani | Dawath SO | 📍 802226 | Suryapura | Post Office - PO |
| 1016 | Kaithahar Khurd | Sikthi BO | 📍 802213 | Dinara | Branch Post Office |
| 1017 | Kaithanar Kala | Sujatpur BO | 📍 802213 | Dinara | Branch Post Office |
| 1018 | Kaithi | Mujrarh BO | 📍 802215 | Nokha | Branch Post Office |
| 1019 | Kaithi | Sanjhauli SO | 📍 802220 | Sanjhauli | Post Office - PO |
| 1020 | Kaithi | Konar BO | 📍 821113 | Sheosagar | Branch Post Office |
| 1021 | Kaithi | Nasriganj SO | 📍 821310 | Nasriganj | Post Office - PO |
| 1022 | Kaithi | Bhadokhra BO | 📍 821312 | Tilouthu | Branch Post Office |
| 1023 | Kajhai | Kajhain BO | 📍 802220 | Bikramganj | Branch Post Office |
| 1024 | Kajhaon | Alampur BO | 📍 821113 | Sasaram | Branch Post Office |
| 1025 | Kajhaon | Nad BO | 📍 821113 | Sasaram | Branch Post Office |
| 1026 | Kakshwar | Amjhore Camp SO | 📍 821302 | Rohtas | Post Office - PO |
| 1027 | Kala Shahar | Nishan Nagar Baddi BO | 📍 821113 | Sasaram | Branch Post Office |
| 1028 | Kala Sugra | Gachhai BO | 📍 802214 | Karakat | Branch Post Office |
| 1029 | Kali Bigha | Nawadih BO | 📍 821308 | Rohtas | Branch Post Office |
| 1030 | Kali Bigha | Ramdihra BO | 📍 821312 | Tilouthu | Branch Post Office |
| 1031 | Kali Tola | Sikthi BO | 📍 802213 | Dinara | Branch Post Office |
| 1032 | Kalwariya | Malwar BO | 📍 821113 | Sasaram | Branch Post Office |
| 1033 | Kalyanpur | Karma BO | 📍 802212 | Bikramganj | Branch Post Office |
| 1034 | Kalyanpur | Silari BO | 📍 821111 | Sheosagar | Branch Post Office |
| 1035 | Kamal Khairwa | Daranagar BO | 📍 821304 | Nauhatta | Branch Post Office |
| 1036 | Kamalpur | Barhari BO | 📍 802215 | Nokha | Branch Post Office |
| 1037 | Kamalpur | Bararhi BO | 📍 821103 | Kargahar | Branch Post Office |
| 1038 | Kamdhenwa | Arthu BO | 📍 802218 | Dinara | Branch Post Office |
| 1039 | Kamranganj | Manikpur Bastipur BO | 📍 821305 | Dehri | Branch Post Office |
| 1040 | Kanak Semariya | Balthari BO | 📍 821107 | Kargahar | Branch Post Office |
| 1041 | Kanchan Bigha | Danwar BO | 📍 821309 | Karakat | Branch Post Office |
| 1042 | Kanchan Tola | Danwar BO | 📍 821309 | Karakat | Branch Post Office |
| 1043 | Kanchanpur | Dalmianagar SO | 📍 821305 | Akorhi Gola | Post Office - PO |
| 1044 | Kanchanpur | Kanchanpur BO | 📍 821305 | Sasaram | Branch Post Office |
| 1045 | Kanchanpur BO | Dalmianagar SO | 📍 821305 | Akorhi Gola | Post Office - PO |
| 1046 | Kanchanpur Tola | Gachhai BO | 📍 802214 | Karakat | Branch Post Office |
| 1047 | Kanchanpur Tola | Ramdihra BO | 📍 821312 | Tilouthu | Branch Post Office |
| 1048 | Kanda Dih | Ghosia Kala BO | 📍 802212 | Bikramganj | Branch Post Office |
| 1049 | Kanh Bahuara | Gorari SO | 📍 802214 | Karakat | Post Office - PO |
| 1050 | Kani | Amaura BO | 📍 821309 | Bikramganj | Branch Post Office |