| Population | 4 (2010), see rank |
| House Units | 3, see rank |
| Race | Whites:75%, Hispanics:0%, Blacks:0%, Asians:0%, Others:25% |
| Total Area: | 1.02 sq mi |
| Water Area: | 0.17 sq mi (16.51%) |
| State: | South Dakota |
| Area: | Watertown, SD |
| County: | Hamlin County |
| City: | Castlewood |
| Census Tract: | 955100 |
| Census Block Group: | 955100-1 |