| Population | 21 (2010), see rank |
| House Units | 10, see rank |
| Race | Whites:100%, Hispanics:0%, Blacks:0%, Asians:0%, Others:0% |
| Total Area: | 3.19 sq mi |
| Water Area: | 0.00 sq mi (0.00%) |
| State: | Iowa |
| Area: | Mason City, IA |
| County: | Worth County |
| City: | Northwood |
| Census Tract: | 690200 |
| Census Block Group: | 690200-3 |