| Office Name | Samastipur B.O |
| Pincodes | 851217 |
| Area | Samastipur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Begusarai |
| Postal Region | Muzaffarpur |
| District | Begusarai |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Samastipur H.O |
| Pincodes | 848101 |
| Area | Samastipur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Samastipur |
| Postal Region | Muzaffarpur |
| District | Samastipur |
| State | Bihar |
| Telephone No. | 06274-222465 |
| Office Name | Samastipur B.O |
| Pincodes | 813108 |
| Area | Samastipur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Bhagalpur |
| Postal Region | Patna Hq |
| District | Bhagalpur |
| State | Bihar |
| Telephone No. | Na |