Harnathpur is located in the district of Siwan, Bihar. The pincode of Harnathpur is 841504. The area "Harnathpur" lies under takula of Siwan and has a Branch Office. Harnathpur comes under the head office Siwan. The postal division for pin code 841504 is Siwan.
| Area | Harnathpur |
| Pincode | 841504 |
| Taluka or Tehsil | Siwan |
| District | Siwan |
| State | Bihar |
| Office Status | Branch Office |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| Sub Office | Raghunathpur (Siwan) |
| Head Office | Siwan |
| Contact Address | Postmaster, Post Office Harnathpur (Branch Office), Siwan, Bihar, India, Pin Code: 841504 |
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 841504 | Admapur pin code | Siwan | Siwan | Branch Office |
| 841504 | Harnathpur pin code | Siwan | Siwan | Branch Office |
| 841504 | Karsar pin code | Siwan | Siwan | Branch Office |
| 841504 | Narhan pin code | Siwan | Siwan | Branch Office |
| 841504 | Raghunathpur Siwan pin code | Siwan | Siwan | Sub Office |
| 841504 | Rajpur pin code | Siwan | Siwan | Branch Office |
| 841504 | Ramnagar pin code | Siwan | Siwan | Branch Office |
Note: While we try to make the pincode data as accurate as possible, sometimes there might be inaccuracy in data. Please feel free and point it out in the below comment section.