| Population | 30 (2010), see rank |
| House Units | 10, see rank |
| Race | Whites:86.7%, Hispanics:0%, Blacks:13.3%, Asians:0%, Others:0% |
| Total Area: | 1.76 sq mi |
| Water Area: | 0.00 sq mi (0.00%) |
| State: | Iowa |
| County: | Iowa County |
| City: | Marengo |
| Census Tract: | 960100 |
| Census Block Group: | 960100-2 |