| Office Name | Siloni Nagar B.O |
| Pincodes | 785693 |
| Area | Siloni Nagar |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | Na |
| Office Name | Silonijan B.O |
| Pincodes | 785602 |
| Area | Silonijan |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | Na |
| Office Name | Silpukhuri B.O |
| Pincodes | 785664 |
| Area | Silpukhuri |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | Na |
| Office Name | Simaluguri S.O |
| Pincodes | 785686 |
| Area | Simaluguri |
| Office Status | Sub Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | 03772-252290 |
| Office Name | Singhaduar B.O |
| Pincodes | 785701 |
| Area | Singhaduar |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | Na |
| Office Name | Singyhbill B.O |
| Pincodes | 785696 |
| Area | Singyhbill |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sitalpather B.O |
| Pincodes | 785703 |
| Area | Sitalpather |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Golaghat |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sivasagar H.O |
| Pincodes | 785640 |
| Area | Sivasagar |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | 03772-222722 |
| Office Name | Sockolatinga B.O |
| Pincodes | 785703 |
| Area | Sockolatinga |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Golaghat |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sodial Kochari Gaon B.O |
| Pincodes | 785630 |
| Area | Sodial Kochari Gaon |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Jorhat |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sologuri B.O |
| Pincodes | 785666 |
| Area | Sologuri |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sologuri Kachari B.O |
| Pincodes | 785703 |
| Area | Sologuri Kachari |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Golaghat |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sonari S.O Sibsagar |
| Pincodes | 785690 |
| Area | Sonari Sibsagar |
| Office Status | Sub Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | 03772-256535 |
| Office Name | Sonowal Kachari B.O |
| Pincodes | 785110 |
| Area | Sonowal Kachari |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Jorhat |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sotai B.O |
| Pincodes | 785010 |
| Area | Sotai |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Jorhat |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sri Ram Bonomali B.O |
| Pincodes | 785105 |
| Area | Sri Ram Bonomali |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Jorhat |
| State | Assam |
| Telephone No. | Na |
| Office Name | Suffry S.O |
| Pincodes | 785689 |
| Area | Suffry |
| Office Status | Sub Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | 03772-212350 |
| Office Name | Sukan Pukhuri B.O |
| Pincodes | 785697 |
| Area | Sukan Pukhuri |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Sibsagar |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sundarpur B.O |
| Pincodes | 785107 |
| Area | Sundarpur |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Jorhat |
| State | Assam |
| Telephone No. | Na |
| Office Name | Sycotta B.O |
| Pincodes | 785633 |
| Area | Sycotta |
| Office Status | Branch Post Office |
| Postal Circle | Assam |
| Postal Division | Sibsagar |
| Postal Region | Dibrugarh |
| District | Jorhat |
| State | Assam |
| Telephone No. | Na |