| | Tuckahoe, VA | Sayville, NY | United States |
| Population | 48,187 | 16,290 | 329,725,481 |
| Female Population | 53.4% | 51.3% | 50.5% |
| Male Population | 46.6% | 48.7% | 49.5% |
| Median Age | 40.3 | 44.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 45,174 | 16,107 | 309,327,143 |
| Population - 2000 | 43,242 | 16,735 | 285,036,114 |
| Population - 1990 | 42,629 | 16,550 | 251,960,433 |
| Pop. 2000 to Now | 15.8% | -4.7% | 15.6% |
| Pop. 1990 to Now | 17.5% | -3.6% | 30.8% |
| space4 | | | |
| Population Density | 2,357.7 | 3,070.1 | 93.4 |
| Land Area | 20.4 | 5.3 | 3,531,905.4 |
| Water Area | 1.3 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Tuckahoe, VA | Sayville, NY | United States |
| Age 0 to 4 | 6.6% | 4.7% | 5.9% |
| Age 5 to 9 | 5.0% | 7.5% | 6.1% |
| Age 10 to 14 | 7.2% | 6.8% | 6.6% |
| Age 15 to 17 | 4.8% | 3.5% | 3.9% |
| Age 18 to 20 | 3.2% | 2.8% | 4.0% |
| Age 21 to 24 | 4.7% | 5.1% | 5.2% |
| Age 25 to 34 | 12.4% | 9.4% | 13.8% |
| Age 35 to 44 | 11.4% | 11.1% | 12.9% |
| Age 45 to 54 | 13.5% | 15.6% | 12.6% |
| Age 55 to 59 | 5.8% | 6.7% | 6.7% |
| Age 60 to 64 | 6.5% | 6.8% | 6.3% |
| Age 65 to 74 | 9.5% | 10.3% | 9.6% |
| Age 75 to 84 | 5.6% | 5.0% | 4.5% |
| Age 85 and over | 3.8% | 4.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Tuckahoe, VA | Sayville, NY | United States |
| White | 74.1% | 91.0% | 59.4% |
| Black | 9.4% | 1.0% | 12.2% |
| Asian | 5.3% | 1.5% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.2% | 0.2% | 0.4% |
| Two or More Races | 4.7% | 1.5% | 3.2% |
| Hispanic | 6.2% | 4.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Tuckahoe, VA | Sayville, NY | United States |
| Married Population | 52.1% | 56.7% | 49.8% |
| Currently Married | 50.3% | 54.4% | 48.0% |
| Married but Separated | 1.8% | 2.3% | 1.8% |
| Single Population | 47.9% | 43.3% | 50.2% |
| Never Married | 30.6% | 28.4% | 33.8% |
| Divorced | 10.4% | 7.7% | 10.8% |
| Widowed | 7.0% | 7.1% | 5.6% |
| space5 | | | |
| Household Size | 2.50 | 2.78 | 2.60 |
| Households | 19,204 | 5,706 | 124,010,992 |
| Family Households | 12,092 | 4,277 | 80,755,759 |
| Married couple, w/children | 34.4% | 35.1% | 30.5% |
| Married couple, no children | 41.2% | 44.4% | 42.9% |
| Non Family Households | 7,112 | 1,429 | 43,255,233 |
| Single householder, w/children | 14.5% | 7.3% | 15.8% |
| Single householder, no children | 9.9% | 13.3% | 10.8% |