| Population | 1 (2010), see rank |
| House Units | 1, see rank |
| Race | Whites:100%, Hispanics:0%, Blacks:0%, Asians:0%, Others:0% |
| Total Area: | 1.00 sq mi |
| Water Area: | 0.01 sq mi (0.85%) |
| State: | South Dakota |
| County: | Sully County |
| City: | Agar |
| Census Tract: | 979100 |
| Census Block Group: | 979100-1 |