| Population | 9 (2010), see rank |
| House Units | 2, see rank |
| Race | Whites:22.2%, Hispanics:0%, Blacks:0%, Asians:0%, Others:77.8% |
| Total Area: | 34.56 sq mi |
| Water Area: | 0.11 sq mi (0.31%) |
| State: | South Dakota |
| County: | Buffalo County |
| City: | Gann Valley |
| Census Tract: | 940200 |
| Census Block Group: | 940200-2 |