| | Huntington, NY | Gainesville, FL | United States |
| Population | 204,147 | 138,741 | 329,725,481 |
| Female Population | 50.6% | 52.2% | 50.5% |
| Male Population | 49.4% | 47.8% | 49.5% |
| Median Age | 46 | 26.8 | 38.4 |
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| Population - 2010 | 203,198 | 124,675 | 309,327,143 |
| Population - 2000 | 195,289 | 95,447 | 285,036,114 |
| Population - 1990 | 191,474 | 84,770 | 251,960,433 |
| Pop. 2000 to Now | 2.5% | 41.4% | 15.6% |
| Pop. 1990 to Now | 4.5% | 59.3% | 30.8% |
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| Population Density | 2,169.0 | 2,203.4 | 93.4 |
| Land Area | 94.1 | 63.0 | 3,531,905.4 |
| Water Area | 43.0 | 1.2 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Huntington, NY | Gainesville, FL | United States |
| Age 0 to 4 | 4.8% | 4.2% | 5.9% |
| Age 5 to 9 | 5.8% | 4.0% | 6.1% |
| Age 10 to 14 | 6.4% | 3.5% | 6.6% |
| Age 15 to 17 | 4.4% | 2.3% | 3.9% |
| Age 18 to 20 | 2.6% | 15.0% | 4.0% |
| Age 21 to 24 | 4.7% | 16.9% | 5.2% |
| Age 25 to 34 | 9.6% | 18.0% | 13.8% |
| Age 35 to 44 | 10.6% | 9.8% | 12.9% |
| Age 45 to 54 | 15.2% | 7.0% | 12.6% |
| Age 55 to 59 | 8.5% | 3.9% | 6.7% |
| Age 60 to 64 | 8.3% | 3.8% | 6.3% |
| Age 65 to 74 | 10.3% | 7.1% | 9.6% |
| Age 75 to 84 | 5.9% | 2.8% | 4.5% |
| Age 85 and over | 2.9% | 1.7% | 1.9% |
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| Race | | | |
| | Huntington, NY | Gainesville, FL | United States |
| White | 76.2% | 55.9% | 59.4% |
| Black | 3.6% | 21.0% | 12.2% |
| Asian | 5.3% | 6.1% | 5.6% |
| Native American | 0.3% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.8% | 0.5% | 0.4% |
| Two or More Races | 2.2% | 3.9% | 3.2% |
| Hispanic | 11.6% | 12.3% | 18.4% |
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| Marriage & Family | | | |
| | Huntington, NY | Gainesville, FL | United States |
| Married Population | 56.4% | 25.5% | 49.8% |
| Currently Married | 55.1% | 24.1% | 48.0% |
| Married but Separated | 1.3% | 1.4% | 1.8% |
| Single Population | 43.6% | 74.5% | 50.2% |
| Never Married | 28.5% | 62.5% | 33.8% |
| Divorced | 8.5% | 9.0% | 10.8% |
| Widowed | 6.6% | 3.0% | 5.6% |
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| Household Size | 2.87 | 2.34 | 2.60 |
| Households | 70,252 | 53,503 | 124,010,992 |
| Family Households | 52,472 | 20,230 | 80,755,759 |
| Married couple, w/children | 34.2% | 23.3% | 30.5% |
| Married couple, no children | 48.8% | 41.5% | 42.9% |
| Non Family Households | 17,780 | 33,273 | 43,255,233 |
| Single householder, w/children | 7.7% | 19.8% | 15.8% |
| Single householder, no children | 9.3% | 15.4% | 10.8% |