| | Los Olivos, CA | Glen Ellen, CA | United States |
| Population | 983 | 1,076 | 329,725,481 |
| Female Population | 45.5% | 51.0% | 50.5% |
| Male Population | 54.5% | 49.0% | 49.5% |
| Median Age | 50.4 | 57.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 905 | 927 | 309,327,143 |
| Population - 2000 | 1,169 | 992 | 285,036,114 |
| Population - 1990 | 924 | 1,191 | 251,960,433 |
| Pop. 2000 to Now | -32.2% | -24.3% | 15.6% |
| Pop. 1990 to Now | -14.2% | -36.9% | 30.8% |
| space4 | | | |
| Population Density | 399.8 | 512.4 | 93.4 |
| Land Area | 2.5 | 2.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Los Olivos, CA | Glen Ellen, CA | United States |
| Age 0 to 4 | 1.3% | 1.7% | 5.9% |
| Age 5 to 9 | 7.9% | 1.9% | 6.1% |
| Age 10 to 14 | 7.5% | 1.7% | 6.6% |
| Age 15 to 17 | 4.1% | 1.7% | 3.9% |
| Age 18 to 20 | 2.0% | 0.0% | 4.0% |
| Age 21 to 24 | 0.8% | 1.5% | 5.2% |
| Age 25 to 34 | 6.0% | 1.4% | 13.8% |
| Age 35 to 44 | 13.5% | 3.5% | 12.9% |
| Age 45 to 54 | 14.9% | 11.1% | 12.6% |
| Age 55 to 59 | 5.8% | 57.4% | 6.7% |
| Age 60 to 64 | 9.0% | 13.6% | 6.3% |
| Age 65 to 74 | 16.3% | 4.6% | 9.6% |
| Age 75 to 84 | 9.3% | 0.0% | 4.5% |
| Age 85 and over | 1.6% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Los Olivos, CA | Glen Ellen, CA | United States |
| White | 81.0% | 80.9% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.6% | 0.0% | 5.6% |
| Native American | 0.0% | 7.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.2% | 4.8% | 3.2% |
| Hispanic | 17.2% | 6.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Los Olivos, CA | Glen Ellen, CA | United States |
| Married Population | 60.4% | 36.4% | 49.8% |
| Currently Married | 60.4% | 36.4% | 48.0% |
| Married but Separated | 0.0% | 0.0% | 1.8% |
| Single Population | 39.6% | 63.6% | 50.2% |
| Never Married | 20.7% | 12.7% | 33.8% |
| Divorced | 11.7% | 50.9% | 10.8% |
| Widowed | 7.2% | 0.0% | 5.6% |
| space5 | | | |
| Household Size | 2.54 | 2.08 | 2.60 |
| Households | 370 | 517 | 124,010,992 |
| Family Households | 271 | 185 | 80,755,759 |
| Married couple, w/children | 32.5% | 20.0% | 30.5% |
| Married couple, no children | 52.4% | 80.0% | 42.9% |
| Non Family Households | 99 | 332 | 43,255,233 |
| Single householder, w/children | 5.9% | 0.0% | 15.8% |
| Single householder, no children | 9.2% | 0.0% | 10.8% |