| | Folly Beach, SC | Glen Ellen, CA | United States |
| Population | 1,035 | 1,076 | 329,725,481 |
| Female Population | 49.5% | 51.0% | 50.5% |
| Male Population | 50.5% | 49.0% | 49.5% |
| Median Age | 62 | 57.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,520 | 927 | 309,327,143 |
| Population - 2000 | 2,116 | 992 | 285,036,114 |
| Population - 1990 | 1,398 | 1,191 | 251,960,433 |
| Pop. 2000 to Now | 26.8% | -24.3% | 15.6% |
| Pop. 1990 to Now | 91.9% | -36.9% | 30.8% |
| space4 | | | |
| Population Density | 82.8 | 512.4 | 93.4 |
| Land Area | 12.5 | 2.1 | 3,531,905.4 |
| Water Area | 6.4 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Folly Beach, SC | Glen Ellen, CA | United States |
| Age 0 to 4 | 1.6% | 1.7% | 5.9% |
| Age 5 to 9 | 0.0% | 1.9% | 6.1% |
| Age 10 to 14 | 1.7% | 1.7% | 6.6% |
| Age 15 to 17 | 0.0% | 1.7% | 3.9% |
| Age 18 to 20 | 0.0% | 0.0% | 4.0% |
| Age 21 to 24 | 1.6% | 1.5% | 5.2% |
| Age 25 to 34 | 6.7% | 1.4% | 13.8% |
| Age 35 to 44 | 15.2% | 3.5% | 12.9% |
| Age 45 to 54 | 16.4% | 11.1% | 12.6% |
| Age 55 to 59 | 6.7% | 57.4% | 6.7% |
| Age 60 to 64 | 21.8% | 13.6% | 6.3% |
| Age 65 to 74 | 25.1% | 4.6% | 9.6% |
| Age 75 to 84 | 0.0% | 0.0% | 4.5% |
| Age 85 and over | 3.1% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Folly Beach, SC | Glen Ellen, CA | United States |
| White | 100.0% | 80.9% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 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 | 0.0% | 4.8% | 3.2% |
| Hispanic | 0.0% | 6.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Folly Beach, SC | Glen Ellen, CA | United States |
| Married Population | 56.6% | 36.4% | 49.8% |
| Currently Married | 56.6% | 36.4% | 48.0% |
| Married but Separated | 0.0% | 0.0% | 1.8% |
| Single Population | 43.4% | 63.6% | 50.2% |
| Never Married | 24.5% | 12.7% | 33.8% |
| Divorced | 7.9% | 50.9% | 10.8% |
| Widowed | 11.0% | 0.0% | 5.6% |
| space5 | | | |
| Household Size | 1.65 | 2.08 | 2.60 |
| Households | 627 | 517 | 124,010,992 |
| Family Households | 274 | 185 | 80,755,759 |
| Married couple, w/children | 12.8% | 20.0% | 30.5% |
| Married couple, no children | 87.2% | 80.0% | 42.9% |
| Non Family Households | 353 | 332 | 43,255,233 |
| Single householder, w/children | 0.0% | 0.0% | 15.8% |
| Single householder, no children | 0.0% | 0.0% | 10.8% |