Chhatapur is Taluka (Tehsil) in Supaul district of Bihar state. Chhatapur has 16 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 852125 | Bhawanipur Patni PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Chunni PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Daharia PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Ghiwaha PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Girdharpatti PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Hariharpur PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Khunti PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Lalganj PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Lalpur PIN Code | Supaul | Chhatapur | Branch Office |
| 852125 | Madhubani PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Mohanpur PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Mohmmad Ganj PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Pariyahi PIN Code | Supaul | Chhatapur | Branch Office |
| 847452 | Ratnasara PIN Code | Supaul | Chhatapur | Branch Office |
| 852125 | Surjapur PIN Code | Supaul | Chhatapur | Branch Office |
| 852137 | Surpatganj PIN Code | Supaul | Chhatapur | Sub Office |