Jonka is located in the district of Sahibganj, Jharkhand. The pincode of Jonka is 816116. The area "Jonka" lies under takula of Rajmahal and has a Branch Office. Jonka comes under the head office Dumka. The postal division for pin code 816116 is Santhal Parganas.
| Area | Jonka |
| Pincode | 816116 |
| Taluka or Tehsil | Rajmahal |
| District | Sahibganj |
| State | Jharkhand |
| Office Status | Branch Office |
| Postal Division | Santhal Parganas |
| Postal Region | Ranchi |
| Sub Office | Tinpahar RS |
| Head Office | Dumka |
| Contact Address | Postmaster, Post Office Jonka (Branch Office), Rajmahal, Jharkhand, India, Pin Code: 816116 |
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 816116 | Bara Durgapur pin code | Sahibganj | Taljhari | Branch Office |
| 816116 | Brindaban pin code | Sahibganj | Taljhari | Branch Office |
| 816116 | Jonka pin code | Sahibganj | Rajmahal | Branch Office |
| 816116 | Kalyanchak pin code | Sahibganj | Rahmahal | Branch Office |
| 816116 | Tinpahar Rs pin code | Sahibganj | Rajmahal | Sub Office |
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