| | Newton, NH | Southchase, FL | United States |
| Population | 4,801 | 15,592 | 329,725,481 |
| Female Population | 49.7% | 46.0% | 50.5% |
| Male Population | 50.3% | 54.0% | 49.5% |
| Median Age | 45.3 | 40.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,621 | 16,482 | 309,327,143 |
| Population - 2000 | 4,289 | 4,633 | 285,036,114 |
| Population - 1990 | 3,473 | 1,686 | 251,960,433 |
| Pop. 2000 to Now | 15.0% | 269.9% | 15.6% |
| Pop. 1990 to Now | 42.1% | 916.4% | 30.8% |
| space4 | | | |
| Population Density | 484.6 | 2,253.2 | 93.4 |
| Land Area | 9.9 | 6.9 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Newton, NH | Southchase, FL | United States |
| Age 0 to 4 | 3.8% | 3.5% | 5.9% |
| Age 5 to 9 | 2.9% | 6.5% | 6.1% |
| Age 10 to 14 | 8.2% | 6.4% | 6.6% |
| Age 15 to 17 | 2.9% | 2.9% | 3.9% |
| Age 18 to 20 | 3.3% | 4.2% | 4.0% |
| Age 21 to 24 | 3.1% | 6.1% | 5.2% |
| Age 25 to 34 | 13.5% | 11.7% | 13.8% |
| Age 35 to 44 | 11.4% | 16.1% | 12.9% |
| Age 45 to 54 | 17.1% | 15.6% | 12.6% |
| Age 55 to 59 | 9.0% | 5.0% | 6.7% |
| Age 60 to 64 | 10.2% | 6.3% | 6.3% |
| Age 65 to 74 | 10.8% | 10.0% | 9.6% |
| Age 75 to 84 | 3.2% | 4.5% | 4.5% |
| Age 85 and over | 0.6% | 1.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Newton, NH | Southchase, FL | United States |
| White | 94.8% | 18.5% | 59.4% |
| Black | 0.0% | 13.2% | 12.2% |
| Asian | 0.2% | 12.6% | 5.6% |
| Native American | 0.0% | 0.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 1.5% | 0.2% |
| Other | 2.8% | 1.0% | 0.4% |
| Two or More Races | 2.0% | 2.2% | 3.2% |
| Hispanic | 0.3% | 50.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Newton, NH | Southchase, FL | United States |
| Married Population | 65.6% | 58.7% | 49.8% |
| Currently Married | 64.9% | 52.9% | 48.0% |
| Married but Separated | 0.8% | 5.7% | 1.8% |
| Single Population | 34.4% | 41.3% | 50.2% |
| Never Married | 20.0% | 30.6% | 33.8% |
| Divorced | 12.3% | 6.9% | 10.8% |
| Widowed | 2.0% | 3.9% | 5.6% |
| space5 | | | |
| Household Size | 2.71 | 3.53 | 2.60 |
| Households | 1,769 | 4,422 | 124,010,992 |
| Family Households | 1,365 | 3,879 | 80,755,759 |
| Married couple, w/children | 36.0% | 24.2% | 30.5% |
| Married couple, no children | 55.2% | 45.1% | 42.9% |
| Non Family Households | 404 | 543 | 43,255,233 |
| Single householder, w/children | 1.9% | 20.2% | 15.8% |
| Single householder, no children | 7.0% | 10.6% | 10.8% |