| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 501 | Bishunapur | Katghara Kala BO | 📍 271870 | Kaiserganj | Branch Post Office |
| 502 | Bishunapur | Dihwa BO | 📍 271875 | Nanpara | Branch Post Office |
| 503 | Bishunpur Tedi | Haiveriya BO | 📍 271872 | Kaiserganj | Branch Post Office |
| 504 | Bisunapur | Fakirpuri BO | 📍 271841 | Nanpara | Branch Post Office |
| 505 | Bisunapur | Babaganj BO | 📍 271881 | Nanpara | Branch Post Office |
| 506 | Bisunpur | Bhaggarwa BO | 📍 271872 | Kaiserganj | Branch Post Office |
| 507 | Biswariya | Mohammad Nagar BO | 📍 271802 | Bahraich | Branch Post Office |
| 508 | Biyabani | Karanpur BO | 📍 271875 | Bahraich | Branch Post Office |
| 509 | Bizagaon | Ram Nagar Semara BO | 📍 271865 | Nanpara | Branch Post Office |
| 510 | Bojhiya | Lohiya Nagar BO | 📍 271855 | Nanpara | Branch Post Office |
| 511 | Botniha | Gopia BO | 📍 271855 | Nanpara | Branch Post Office |
| 512 | Botniha | Kundwa BO | 📍 271855 | Nanpara | Branch Post Office |
| 513 | Botniha | Majhara BO | 📍 271855 | Nanpara | Branch Post Office |
| 514 | Bragunnu | Katra Bahadurpur BO | 📍 271802 | Bahraich | Branch Post Office |
| 515 | Brawa Bhadauli | Chilwaria SO | 📍 271870 | Bahraich | Post Office - PO |
| 516 | Bubkapur | Babkapur BO | 📍 271902 | Kaiserganj | Branch Post Office |
| 517 | Budan Pur | Badholi BO | 📍 271904 | Kaiserganj | Branch Post Office |
| 518 | Budani bhaluhiya | Khargaura Janoob BO | 📍 271845 | Bahraich | Branch Post Office |
| 519 | Budhaigawn | Ram Nagar Semara BO | 📍 271865 | Nanpara | Branch Post Office |
| 520 | Bulaha | Hariharpur BO | 📍 271870 | Kaiserganj | Branch Post Office |
| 521 | Bulbul Newaj | Bulbul Newaj BO | 📍 271882 | Nanpara | Branch Post Office |
| 522 | Chafariya | Chafaria Bazar BO | 📍 271841 | Nanpara | Branch Post Office |
| 523 | Chafriya | Dharmanpur BO | 📍 271875 | Bahraich | Branch Post Office |
| 524 | Chaggarawa rampur | Rajapur Kala BO | 📍 271865 | Nanpara | Branch Post Office |
| 525 | Chahalwa | Chahalwa BO | 📍 271841 | Nanpara | Branch Post Office |
| 526 | Chahalwa | Babaganj BO | 📍 271881 | Nanpara | Branch Post Office |
| 527 | Chahlar | Laluhi BO | 📍 271830 | Nanpara | Branch Post Office |
| 528 | Chahlar | Babaganj BO | 📍 271881 | Nanpara | Branch Post Office |
| 529 | Chahlar | Arai Umari BO | 📍 271904 | Kaiserganj | Branch Post Office |
| 530 | Chain purawa | Jiganiamahipal BO | 📍 271872 | Kaiserganj | Branch Post Office |
| 531 | Chainpurawa | Sablapur BO | 📍 271825 | Mahasi ** | Branch Post Office |
| 532 | Chaisar | Bisheswarganj SO | 📍 271821 | Bahraich | Post Office - PO |
| 533 | Chaisar | Gangwal BO | 📍 271821 | Bahraich | Branch Post Office |
| 534 | Chak Pihani | Kaiserganj SO | 📍 271903 | Kaiserganj | Post Office - PO |
| 535 | Chak Saugahana | Parsendi BO | 📍 271903 | Kaiserganj | Branch Post Office |
| 536 | Chakaia | Mangouriha BO | 📍 271855 | Nanpara | Branch Post Office |
| 537 | Chakapur | Begampur BO | 📍 271875 | Bahraich | Branch Post Office |
| 538 | Chakdaha | Bakaina Bazar BO | 📍 271851 | Mahasi ** | Branch Post Office |
| 539 | Chakiapur | Risia SO | 📍 271875 | Bahraich | Post Office - PO |
| 540 | Chakiya/Rupaidiha | Rupaidiha SO | 📍 271881 | Nanpara | Post Office - PO |
| 541 | Chakkawa | Lalpur BO | 📍 271806 | Bahraich | Branch Post Office |
| 542 | Chaku Jot | Chakujot BO | 📍 271870 | Bahraich | Branch Post Office |
| 543 | Chaku Jot | Begampur BO | 📍 271875 | Bahraich | Branch Post Office |
| 544 | Chakujot | Chakujot BO | 📍 271870 | Kaiserganj | Branch Post Office |
| 545 | Chalharia | Soharwa BO | 📍 271875 | Bahraich | Branch Post Office |
| 546 | Chambalghati | Maurauwa Bazar BO | 📍 271825 | Mahasi ** | Branch Post Office |
| 547 | Chamrahia | Naruttampur BO | 📍 271851 | Mahasi ** | Branch Post Office |
| 548 | Chanaini | Bankashi BO | 📍 271865 | Nanpara | Branch Post Office |
| 549 | Chand Paiya | Mahasi BO | 📍 271824 | Mahasi ** | Branch Post Office |
| 550 | Chandaha | Naiwashi BO | 📍 271872 | Kaiserganj | Branch Post Office |