| Population | 1 (2010), see rank |
| House Units | 1, see rank |
| Race | Whites:100%, Hispanics:0%, Blacks:0%, Asians:0%, Others:0% |
| Total Area: | 0.14 sq mi |
| Water Area: | 0.00 sq mi (0.00%) |
| State: | Wisconsin |
| Area: | Madison, WI |
| County: | Columbia County |
| City: | Rio |
| Census Tract: | 970100 |
| Census Block Group: | 970100-2 |