| Population | 21 (2010), see rank |
| House Units | 7, see rank |
| Race | Whites:95.2%, Hispanics:0%, Blacks:0%, Asians:0%, Others:4.8% |
| Total Area: | 0.01 sq mi |
| Water Area: | 0.00 sq mi (0.00%) |
| State: | Iowa |
| Area: | Spencer, IA |
| County: | Clay County |
| City: | Spencer |
| Census Tract: | 080200 |
| Census Block Group: | 080200-4 |