| | Freeport, PA | Washington, PA | United States |
| Population | 1,828 | 13,322 | 329,725,481 |
| Female Population | 53.1% | 49.9% | 50.5% |
| Male Population | 46.9% | 50.2% | 49.5% |
| Median Age | 36.6 | 36.5 | 38.4 |
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| Population - 2010 | 1,811 | 14,026 | 309,327,143 |
| Population - 2000 | 1,962 | 15,268 | 285,036,114 |
| Population - 1990 | 1,983 | 15,864 | 251,960,433 |
| Pop. 2000 to Now | -15.3% | -13.2% | 15.6% |
| Pop. 1990 to Now | -16.2% | -16.5% | 30.8% |
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| Population Density | 1,439.4 | 4,519.0 | 93.4 |
| Land Area | 1.3 | 2.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Freeport, PA | Washington, PA | United States |
| Age 0 to 4 | 5.3% | 6.3% | 5.9% |
| Age 5 to 9 | 8.8% | 4.7% | 6.1% |
| Age 10 to 14 | 6.0% | 3.4% | 6.6% |
| Age 15 to 17 | 7.3% | 2.5% | 3.9% |
| Age 18 to 20 | 2.3% | 9.3% | 4.0% |
| Age 21 to 24 | 2.3% | 7.3% | 5.2% |
| Age 25 to 34 | 15.5% | 14.4% | 13.8% |
| Age 35 to 44 | 14.1% | 9.8% | 12.9% |
| Age 45 to 54 | 9.5% | 13.6% | 12.6% |
| Age 55 to 59 | 6.0% | 8.6% | 6.7% |
| Age 60 to 64 | 5.5% | 5.2% | 6.3% |
| Age 65 to 74 | 11.2% | 9.8% | 9.6% |
| Age 75 to 84 | 4.3% | 3.8% | 4.5% |
| Age 85 and over | 2.0% | 1.3% | 1.9% |
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| Race | | | |
| | Freeport, PA | Washington, PA | United States |
| White | 96.0% | 72.7% | 59.4% |
| Black | 2.0% | 14.6% | 12.2% |
| Asian | 0.0% | 1.8% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 2.1% | 6.4% | 3.2% |
| Hispanic | 0.0% | 4.3% | 18.4% |
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| Marriage & Family | | | |
| | Freeport, PA | Washington, PA | United States |
| Married Population | 47.1% | 29.4% | 49.8% |
| Currently Married | 40.3% | 28.1% | 48.0% |
| Married but Separated | 6.8% | 1.3% | 1.8% |
| Single Population | 52.9% | 70.6% | 50.2% |
| Never Married | 30.0% | 48.0% | 33.8% |
| Divorced | 16.6% | 15.9% | 10.8% |
| Widowed | 6.2% | 6.7% | 5.6% |
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| Household Size | 2.21 | 2.04 | 2.60 |
| Households | 826 | 5,667 | 124,010,992 |
| Family Households | 485 | 2,665 | 80,755,759 |
| Married couple, w/children | 24.3% | 18.3% | 30.5% |
| Married couple, no children | 35.1% | 37.1% | 42.9% |
| Non Family Households | 341 | 3,002 | 43,255,233 |
| Single householder, w/children | 36.9% | 24.2% | 15.8% |
| Single householder, no children | 3.7% | 20.4% | 10.8% |