| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 1401 | kasturi chak purani | Nayagaon SO | 📍 841217 | Sonepur | Post Office - PO |
| 1402 | Katalpur | Jaithar BO | 📍 841417 | Ishupur | Branch Post Office |
| 1403 | Katea | Keshri Mathia BO | 📍 841220 | Lahladpur | Branch Post Office |
| 1404 | Katesar Buzurg | Nagra SO Saran | 📍 841442 | Nagra | Post Office - PO |
| 1405 | Katokhar | Cheful BO | 📍 841209 | Manjhi | Branch Post Office |
| 1406 | Katsa | Katsa BO | 📍 841311 | Amnour | Branch Post Office |
| 1407 | Katsa | Semri BO | 📍 841421 | Mashrakh | Branch Post Office |
| 1408 | Katsa | Madarpur BO | 📍 841422 | Mashrakh | Branch Post Office |
| 1409 | Katsa | Sarmi BO | 📍 841422 | Baniapur | Branch Post Office |
| 1410 | Katsa UBGB Bank1 | Katsa BO | 📍 841311 | Amnour | Branch Post Office |
| 1411 | Kaunrudhaunru | Manjhi SO | 📍 841313 | Manjhi | Post Office - PO |
| 1412 | Kauri Azam | Baksanda BO | 📍 841219 | Parsa | Branch Post Office |
| 1413 | Kauria | Shyam Kauria BO | 📍 841411 | Ishupur | Branch Post Office |
| 1414 | Kaushalpur | Rampur BO | 📍 841311 | Nagra | Branch Post Office |
| 1415 | Kawalpura | Kawalpura BO | 📍 841417 | Mashrakh | Branch Post Office |
| 1416 | Kawwal | Matiyar BO | 📍 841209 | Manjhi | Branch Post Office |
| 1417 | Kazi Dhamsar | Dayalpur SO Saran | 📍 841206 | Lahladpur | Post Office - PO |
| 1418 | Kedaru parsa | Chainwa SO | 📍 841204 | Ekma | Post Office - PO |
| 1419 | Kerva | Kerwa BO | 📍 841411 | Ishupur | Branch Post Office |
| 1420 | Kerwa | Kerwa BO | 📍 841411 | Ishupur | Branch Post Office |
| 1421 | Kerwa Chaithai | Kerwa BO | 📍 841411 | Ishupur | Branch Post Office |
| 1422 | Kerwa Mathiya | Kerwa BO | 📍 841411 | Ishupur | Branch Post Office |
| 1423 | Kerwa Purb Tola | Kerwa BO | 📍 841411 | Ishupur | Branch Post Office |
| 1424 | Kerwa Takath | Kerwa BO | 📍 841411 | Ishupur | Branch Post Office |
| 1425 | Kesarpur | Dighwara SO | 📍 841207 | Dighwara | Post Office - PO |
| 1426 | Kesharpur | Ismela BO | 📍 841221 | Dighwara | Branch Post Office |
| 1427 | Keshri tola | Fulwaria Tajpur SO | 📍 841209 | Manjhi | Post Office - PO |
| 1428 | Ketuka Bikram | Maker SO | 📍 841215 | Maker | Post Office - PO |
| 1429 | Ketuka Lachchhi | Maker SO | 📍 841215 | Maker | Post Office - PO |
| 1430 | Ketuka Lachchhi | Lachhi Kaituka BO | 📍 841460 | Maker | Branch Post Office |
| 1431 | Kewani | Kewani BO | 📍 841311 | Garkha | Branch Post Office |
| 1432 | Kewani Middle School | Kewani BO | 📍 841311 | Garkha | Branch Post Office |
| 1433 | kewari kala | Pakri Mohamdpur BO | 📍 841218 | Amnour | Branch Post Office |
| 1434 | Kewari Kalan | Koreya BO | 📍 841218 | Amnour | Branch Post Office |
| 1435 | Kewatia | Bela BO | 📍 841221 | Dariapur | Branch Post Office |
| 1436 | Kewatiya | Dariapur BO | 📍 841221 | Dariapur | Branch Post Office |
| 1437 | Kewtiya Gachhi | Dariapur BO | 📍 841221 | Dariapur | Branch Post Office |
| 1438 | Kewtiya School | Dariapur BO | 📍 841221 | Dariapur | Branch Post Office |
| 1439 | Khabsa | Khabsi BO | 📍 841443 | Baniapur | Branch Post Office |
| 1440 | Khabshi | Gaura SO Saran | 📍 841443 | Marhaura | Post Office - PO |
| 1441 | Khabsi | Khabsi BO | 📍 841443 | Baniapur | Branch Post Office |
| 1442 | Khadaha | Gohpur BO | 📍 841311 | Garkha | Branch Post Office |
| 1443 | Khadu chapra | Hafijzpur BO | 📍 841422 | Baniapur | Branch Post Office |
| 1444 | Khaira | Khaira SO Saran | 📍 841414 | Nagra | Post Office - PO |
| 1445 | Khairadih | Sauri Buxi Zee BO | 📍 841412 | Jalalpur | Branch Post Office |
| 1446 | Khairanpur | Masrakh SO | 📍 841417 | Mashrakh | Post Office - PO |
| 1447 | Khairanpur | Pakari BO | 📍 841417 | Mashrakh | Branch Post Office |
| 1448 | khairanpur methia | Pakari BO | 📍 841417 | Mashrakh | Branch Post Office |
| 1449 | khairati | Taraiya SO | 📍 841424 | Taraiya | Post Office - PO |
| 1450 | Khairwar | Khairwar BO | 📍 841214 | Revelganj | Branch Post Office |