| Population | 5 (2010), see rank |
| House Units | 1, see rank |
| Race | Whites:100%, Hispanics:0%, Blacks:0%, Asians:0%, Others:0% |
| Total Area: | 0.00 sq mi |
| Water Area: | 0.00 sq mi (0.00%) |
| State: | Missouri |
| Area: | St. Louis, MO-IL |
| County: | Warren County |
| City: | Marthasville |
| Census Tract: | 820202 |
| Census Block Group: | 820202-4 |