| Population | 109 (2010), see rank |
| House Units | 56, see rank |
| Race | Whites:88.1%, Hispanics:3.7%, Blacks:0%, Asians:6.4%, Others:5.5% |
| Total Area: | 2.79 sq mi |
| Water Area: | 0.00 sq mi (0.00%) |
| State: | California |
| Area: | San Francisco-Oakland-Fremont, CA |
| County: | Marin County |
| City: | Nicasio |
| Census Tract: | 133000 |
| Census Block Group: | 133000-2 |