| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 501 | Indarpur | Saisar Ganghari BO | 📍 802117 | Itarhi | Branch Post Office |
| 502 | Indaur | Indaur BO | 📍 802117 | Itarhi | Branch Post Office |
| 503 | Inglish | Bisikala BO | 📍 802129 | Itarhi | Branch Post Office |
| 504 | Intwa | Kajaria BO | 📍 802128 | Rajpur | Branch Post Office |
| 505 | Isarpur | Rasen BO | 📍 802128 | Rajpur | Branch Post Office |
| 506 | Isharpura | Itarhi SO | 📍 802123 | Itarhi | Post Office - PO |
| 507 | Ismailpur | Nagpur BO | 📍 802122 | Rajpur | Branch Post Office |
| 508 | Ismailpur | Harpur BO | 📍 802128 | Rajpur | Branch Post Office |
| 509 | Itarhi | Atrauna BO | 📍 802123 | Itarhi | Branch Post Office |
| 510 | Itarhi | Baikunthpur BO | 📍 802123 | Itarhi | Branch Post Office |
| 511 | Itarhi | Basantpur BO | 📍 802123 | Itarhi | Branch Post Office |
| 512 | Itarhi | Bashudhar BO | 📍 802123 | Itarhi | Branch Post Office |
| 513 | Itarhi | Diwan De Barka Gaon BO | 📍 802123 | Itarhi | Branch Post Office |
| 514 | Itarhi | Itarhi SO | 📍 802123 | Itarhi | Post Office - PO |
| 515 | Itarhi | Khanita BO | 📍 802123 | Itarhi | Branch Post Office |
| 516 | Itarhi | Unwas BO | 📍 802123 | Itarhi | Branch Post Office |
| 517 | Itarhia | Itarhian BO | 📍 802117 | Rajpur | Branch Post Office |
| 518 | Itaudha | Mania BO | 📍 802125 | Nawanagar | Branch Post Office |
| 519 | Itaunha | Basaon Kalan BO | 📍 802129 | Itarhi | Branch Post Office |
| 520 | Jagal chak | Dhansoi SO | 📍 802117 | Rajpur | Post Office - PO |
| 521 | Jagdara | Sonbarsa BO | 📍 802118 | Buxar | Branch Post Office |
| 522 | Jagdeopur | Dumari SO Buxar | 📍 802120 | Simri | Post Office - PO |
| 523 | Jagdishpur | Kamarpur BO | 📍 802102 | Buxar | Branch Post Office |
| 524 | Jagdishpur | Barki Kulharia BO | 📍 802116 | Buxar | Branch Post Office |
| 525 | Jagdishpur | Sikraul BO | 📍 802129 | Chausa | Branch Post Office |
| 526 | Jagmanpur | Dhansoi SO | 📍 802117 | Rajpur | Post Office - PO |
| 527 | Jah | Indaur BO | 📍 802117 | Itarhi | Branch Post Office |
| 528 | Jahanpur | Atrauna BO | 📍 802123 | Itarhi | Branch Post Office |
| 529 | Jaipur | Umedpur BO | 📍 802112 | Barhampur | Branch Post Office |
| 530 | Jaipur | Bashudhar BO | 📍 802123 | Itarhi | Branch Post Office |
| 531 | Jaipura | Sarenja BO | 📍 802114 | Rajpur | Branch Post Office |
| 532 | Jairampur | Nagpur BO | 📍 802122 | Rajpur | Branch Post Office |
| 533 | Jairampur | Rampur BO | 📍 802127 | Kesath | Branch Post Office |
| 534 | Jalalpur | Dhansoi SO | 📍 802117 | Rajpur | Post Office - PO |
| 535 | Jalalpur | Ekauna Dubauli BO | 📍 802131 | Simri | Branch Post Office |
| 536 | Jalhara | Jalahara BO | 📍 802128 | Rajpur | Branch Post Office |
| 537 | Jalhara Talas | Jalahara BO | 📍 802128 | Rajpur | Branch Post Office |
| 538 | Jalwandei | Banarpur BO | 📍 802114 | Chausa | Branch Post Office |
| 539 | Jalwasi | Khanita BO | 📍 802123 | Itarhi | Branch Post Office |
| 540 | Jamauli | Deoria BO | 📍 802122 | Rajpur | Branch Post Office |
| 541 | Jamuaon | Kukurahan BO | 📍 802123 | Itarhi | Branch Post Office |
| 542 | Jamuni Dehri | Manikpur BO | 📍 802128 | Rajpur | Branch Post Office |
| 543 | Jamupur | Kakaria BO | 📍 802117 | Rajpur | Branch Post Office |
| 544 | Jarigawan | Karhshi BO | 📍 802102 | Buxar | Branch Post Office |
| 545 | Jaso | Buxar HO | 📍 802101 | Buxar | Head Post Office - H |
| 546 | Jatmahi | Sonbarsa BO | 📍 802118 | Buxar | Branch Post Office |
| 547 | Jawahi DItto | Chakki BO | 📍 802120 | Chakki | Branch Post Office |
| 548 | Jawahir Diara Ditto | Chakki BO | 📍 802120 | Chakki | Branch Post Office |
| 549 | Jigna | Basaon Kalan BO | 📍 802129 | Itarhi | Branch Post Office |
| 550 | Jitwa Dehri | Atimi BO | 📍 802129 | Nawanagar | Branch Post Office |