| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 551 | Karanpur | Dhamani BO | 📍 805125 | Rajauli | Branch Post Office |
| 552 | Karanpur | Samharigarh BO | 📍 805132 | Roh | Branch Post Office |
| 553 | Karigawan | Rajauli SO | 📍 805125 | Rajauli | Post Office - PO |
| 554 | Karma Kalan | Rajauli SO | 📍 805125 | Rajauli | Post Office - PO |
| 555 | Karman | Punther BO | 📍 805103 | Narhat | Branch Post Office |
| 556 | Karman | Roh SO | 📍 805141 | Roh | Branch Post Office |
| 557 | Karman Khurd | Rajauli SO | 📍 805125 | Sirdala | Post Office - PO |
| 558 | Kashi Chak | Apsai BO | 📍 805108 | Kashi Chak | Branch Post Office |
| 559 | Kashi Chak | Warisaliganj SO | 📍 805130 | Kashi Chak | Post Office - PO |
| 560 | Kashi Choan | Kundabhalua BO | 📍 805107 | Akbarpur | Branch Post Office |
| 561 | Kasikhati | Sarkanda BO | 📍 805102 | Gobindpur | Branch Post Office |
| 562 | Kasmara | Roh SO | 📍 805141 | Roh | Branch Post Office |
| 563 | Katahra | Roh SO | 📍 805141 | Roh | Branch Post Office |
| 564 | Katghara | Meskaur BO | 📍 805122 | Meskaur | Branch Post Office |
| 565 | Kathaun | Kosi SO Nawada | 📍 805107 | Roh | Post Office - PO |
| 566 | Kathokari | Bauri BO | 📍 805113 | Warisaliganj | Branch Post Office |
| 567 | Katni | Okhariyagolab BO | 📍 805106 | Kawakol | Branch Post Office |
| 568 | Katru Chak | Budhwara BO | 📍 805121 | Gobindpur | Branch Post Office |
| 569 | Kaua Bara | Nagwan BO | 📍 805128 | Meskaur | Branch Post Office |
| 570 | Kauakol | N Purwaritola BO | 📍 805106 | Kawakol | Branch Post Office |
| 571 | Kawakol | Madhopur BO | 📍 805102 | Kawakol | Branch Post Office |
| 572 | Kawakol | Kawakol SO | 📍 805106 | Kawakol | Post Office - PO |
| 573 | Kawakol | Kharsari BO | 📍 805106 | Kawakol | Branch Post Office |
| 574 | Kawakol | Madhurapur BO | 📍 805106 | Kawakol | Branch Post Office |
| 575 | Kawakol | Mahapurchhab BO | 📍 805106 | Kawakol | Branch Post Office |
| 576 | Kawakol | Manjhila BO | 📍 805106 | Kawakol | Branch Post Office |
| 577 | Kawakol | Okhariyagolab BO | 📍 805106 | Kawakol | Branch Post Office |
| 578 | Kawakol | Phuldih BO | 📍 805106 | Kawakol | Branch Post Office |
| 579 | Kawakol | Sundri Dumari BO | 📍 805106 | Kawakol | Branch Post Office |
| 580 | Kawala | Budhauli BO | 📍 805124 | Pakribarawan | Branch Post Office |
| 581 | Kazi Bigha | Prama BO | 📍 805109 | Hisua | Branch Post Office |
| 582 | Kazi Chak | Marue BO | 📍 805104 | Roh | Branch Post Office |
| 583 | Kena | Kenasari BO | 📍 805123 | Nawada | Branch Post Office |
| 584 | Kendua | Hasua SO | 📍 805103 | Hisua | Post Office - PO |
| 585 | Kendua | G B Kendua Konihar BO | 📍 805122 | Sirdala | Branch Post Office |
| 586 | Kendua | Orhanpur SO | 📍 805123 | Nawada | Post Office - PO |
| 587 | Kendua | Chamotha BO | 📍 805125 | Rajauli | Branch Post Office |
| 588 | Kendua | B Garhrampur BO | 📍 805126 | Akbarpur | Branch Post Office |
| 589 | Keshori | Pakaribarwan SO | 📍 805124 | Pakribarawan | Post Office - PO |
| 590 | Kewali | Kawakol SO | 📍 805106 | Kawakol | Post Office - PO |
| 591 | Kewali | Kewaii BO | 📍 805106 | Kawakol | Branch Post Office |
| 592 | Khaira | Kharsari BO | 📍 805106 | Kawakol | Branch Post Office |
| 593 | Khaira | Bauri BO | 📍 805113 | Warisaliganj | Branch Post Office |
| 594 | Khaira | Lkhamohna BO | 📍 805121 | Akbarpur | Branch Post Office |
| 595 | Khaira Buzurg | Kuhila BO | 📍 805126 | Akbarpur | Branch Post Office |
| 596 | khairachuan | Singar BO | 📍 805125 | Rajauli | Branch Post Office |
| 597 | Khairakhurd | Budhwara BO | 📍 805121 | Gobindpur | Branch Post Office |
| 598 | Khajpura | Baghibardiha BO | 📍 805132 | Warisaliganj | Branch Post Office |
| 599 | Khajuri | Andharwari BO | 📍 805125 | Rajauli | Branch Post Office |
| 600 | Khakhanduwa | Koriauna BO | 📍 805126 | Gobindpur | Branch Post Office |