| | Fulton, NY | Liverpool, NY | United States |
| Population | 11,461 | 2,235 | 329,725,481 |
| Female Population | 51.0% | 52.2% | 50.5% |
| Male Population | 49.0% | 47.8% | 49.5% |
| Median Age | 33.6 | 51.5 | 38.4 |
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| Population - 2010 | 11,901 | 2,334 | 309,327,143 |
| Population - 2000 | 11,855 | 2,505 | 285,036,114 |
| Population - 1990 | 12,929 | 2,624 | 251,960,433 |
| Pop. 2000 to Now | -7.0% | -4.4% | 15.6% |
| Pop. 1990 to Now | -14.8% | -8.8% | 30.8% |
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| Population Density | 3,000.3 | 2,952.4 | 93.4 |
| Land Area | 3.8 | 0.8 | 3,531,905.4 |
| Water Area | 1.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Fulton, NY | Liverpool, NY | United States |
| Age 0 to 4 | 8.1% | 6.6% | 5.9% |
| Age 5 to 9 | 6.8% | 4.3% | 6.1% |
| Age 10 to 14 | 7.7% | 2.8% | 6.6% |
| Age 15 to 17 | 2.6% | 3.5% | 3.9% |
| Age 18 to 20 | 3.6% | 0.0% | 4.0% |
| Age 21 to 24 | 6.8% | 3.4% | 5.2% |
| Age 25 to 34 | 15.9% | 14.0% | 13.8% |
| Age 35 to 44 | 11.3% | 10.6% | 12.9% |
| Age 45 to 54 | 11.1% | 7.9% | 12.6% |
| Age 55 to 59 | 7.1% | 7.5% | 6.7% |
| Age 60 to 64 | 5.5% | 12.0% | 6.3% |
| Age 65 to 74 | 8.1% | 15.3% | 9.6% |
| Age 75 to 84 | 2.8% | 7.7% | 4.5% |
| Age 85 and over | 2.8% | 4.4% | 1.9% |
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| Race | | | |
| | Fulton, NY | Liverpool, NY | United States |
| White | 92.1% | 89.4% | 59.4% |
| Black | 1.0% | 0.7% | 12.2% |
| Asian | 0.5% | 4.1% | 5.6% |
| Native American | 0.3% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.5% | 1.3% | 3.2% |
| Hispanic | 3.6% | 4.5% | 18.4% |
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| Marriage & Family | | | |
| | Fulton, NY | Liverpool, NY | United States |
| Married Population | 42.0% | 53.7% | 49.8% |
| Currently Married | 37.6% | 51.6% | 48.0% |
| Married but Separated | 4.5% | 2.1% | 1.8% |
| Single Population | 58.0% | 46.3% | 50.2% |
| Never Married | 37.6% | 25.5% | 33.8% |
| Divorced | 13.7% | 13.3% | 10.8% |
| Widowed | 6.6% | 7.5% | 5.6% |
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| Household Size | 2.36 | 2.06 | 2.60 |
| Households | 4,812 | 1,073 | 124,010,992 |
| Family Households | 3,034 | 628 | 80,755,759 |
| Married couple, w/children | 23.8% | 24.7% | 30.5% |
| Married couple, no children | 27.7% | 52.4% | 42.9% |
| Non Family Households | 1,778 | 445 | 43,255,233 |
| Single householder, w/children | 36.4% | 9.2% | 15.8% |
| Single householder, no children | 12.2% | 13.7% | 10.8% |