| Population | 1 (2010), see rank |
| House Units | 1, see rank |
| Race | Whites:100%, Hispanics:0%, Blacks:0%, Asians:0%, Others:0% |
| Total Area: | 1.41 sq mi |
| Water Area: | 0.02 sq mi (1.24%) |
| State: | Montana |
| County: | Sheridan County |
| City: | Dagmar |
| Census Tract: | 090400 |
| Census Block Group: | 090400-1 |