| | Aventura, FL | Hockessin, DE | United States |
| Population | 39,734 | 13,464 | 329,725,481 |
| Female Population | 55.8% | 52.7% | 50.5% |
| Male Population | 44.3% | 47.3% | 49.5% |
| Median Age | 50.2 | 45.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 35,892 | 12,919 | 309,327,143 |
| Population - 2000 | 25,267 | 12,902 | 285,036,114 |
| Population - 1990 | 14,914 | 10,051 | 251,960,433 |
| Pop. 2000 to Now | 44.7% | 7.4% | 15.6% |
| Pop. 1990 to Now | 145.1% | 37.9% | 30.8% |
| space4 | | | |
| Population Density | 14,988.3 | 1,340.9 | 93.4 |
| Land Area | 2.7 | 10.0 | 3,531,905.4 |
| Water Area | 0.9 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Aventura, FL | Hockessin, DE | United States |
| Age 0 to 4 | 3.9% | 6.3% | 5.9% |
| Age 5 to 9 | 5.9% | 6.3% | 6.1% |
| Age 10 to 14 | 4.9% | 7.0% | 6.6% |
| Age 15 to 17 | 2.9% | 4.0% | 3.9% |
| Age 18 to 20 | 1.7% | 2.7% | 4.0% |
| Age 21 to 24 | 3.0% | 2.3% | 5.2% |
| Age 25 to 34 | 7.8% | 7.5% | 13.8% |
| Age 35 to 44 | 12.2% | 13.0% | 12.9% |
| Age 45 to 54 | 15.7% | 14.8% | 12.6% |
| Age 55 to 59 | 7.8% | 6.8% | 6.7% |
| Age 60 to 64 | 6.5% | 7.1% | 6.3% |
| Age 65 to 74 | 14.5% | 14.0% | 9.6% |
| Age 75 to 84 | 8.8% | 5.3% | 4.5% |
| Age 85 and over | 4.5% | 2.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Aventura, FL | Hockessin, DE | United States |
| White | 49.3% | 82.3% | 59.4% |
| Black | 1.5% | 2.7% | 12.2% |
| Asian | 1.9% | 9.0% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.9% | 0.6% | 0.4% |
| Two or More Races | 2.6% | 3.7% | 3.2% |
| Hispanic | 43.8% | 1.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Aventura, FL | Hockessin, DE | United States |
| Married Population | 52.2% | 68.0% | 49.8% |
| Currently Married | 50.9% | 67.6% | 48.0% |
| Married but Separated | 1.3% | 0.4% | 1.8% |
| Single Population | 47.8% | 32.0% | 50.2% |
| Never Married | 23.6% | 21.1% | 33.8% |
| Divorced | 15.6% | 5.2% | 10.8% |
| Widowed | 8.5% | 5.7% | 5.6% |
| space5 | | | |
| Household Size | 2.13 | 2.75 | 2.60 |
| Households | 18,624 | 4,782 | 124,010,992 |
| Family Households | 10,226 | 4,101 | 80,755,759 |
| Married couple, w/children | 25.6% | 38.0% | 30.5% |
| Married couple, no children | 53.2% | 51.2% | 42.9% |
| Non Family Households | 8,398 | 681 | 43,255,233 |
| Single householder, w/children | 10.1% | 5.9% | 15.8% |
| Single householder, no children | 11.0% | 4.9% | 10.8% |