| Post Office Name | US Post Office |
| Address | 509 N Main St |
| City | Roslyn |
| State | South Dakota |
| Phone Number | (605) 486-4236 |
| Latitude | 45.5149 |
| Longitude | -97.5914 |
57261 US Post Office in Roslyn, South Dakota is located at 509 N Main St. The Roslyn Post Office Number is (605) 486-4236
