| Population | 3 (2010), see rank |
| House Units | 1, see rank |
| Race | Whites:100%, Hispanics:0%, Blacks:0%, Asians:0%, Others:0% |
| Total Area: | 4.09 sq mi |
| Water Area: | 0.42 sq mi (10.33%) |
| State: | South Dakota |
| County: | Day County |
| City: | Roslyn |
| Census Tract: | 952900 |
| Census Block Group: | 952900-1 |