| Population | 21 (2010), see rank |
| House Units | 11, see rank |
| Race | Whites:95.2%, Hispanics:9.5%, Blacks:0%, Asians:0%, Others:4.8% |
| Total Area: | 0.49 sq mi |
| Water Area: | 0.00 sq mi (0.00%) |
| State: | Virginia |
| Area: | Washington-Arlington-Alexandria, DC-VA-MD-WV |
| County: | Loudoun County |
| City: | Round Hill |
| Census Tract: | 610800 |
| Census Block Group: | 610800-3 |