| | Harrison town (Hudson County), NJ | Miami, FL | United States |
| Population | 18,824 | 440,807 | 329,725,481 |
| Female Population | 48.2% | 49.6% | 50.5% |
| Male Population | 51.8% | 50.4% | 49.5% |
| Median Age | 33.8 | 39.9 | 38.4 |
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| Population - 2010 | 13,561 | 400,798 | 309,327,143 |
| Population - 2000 | 14,424 | 362,470 | 285,036,114 |
| Population - 1990 | 13,425 | 358,548 | 251,960,433 |
| Pop. 2000 to Now | 42.0% | 30.1% | 15.6% |
| Pop. 1990 to Now | 52.6% | 31.5% | 30.8% |
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| Population Density | 15,544.2 | 12,246.0 | 93.4 |
| Land Area | 1.2 | 36.0 | 3,531,905.4 |
| Water Area | 0.1 | 20.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Harrison town (Hudson County), NJ | Miami, FL | United States |
| Age 0 to 4 | 6.9% | 5.6% | 5.9% |
| Age 5 to 9 | 5.5% | 4.4% | 6.1% |
| Age 10 to 14 | 6.0% | 4.3% | 6.6% |
| Age 15 to 17 | 2.5% | 2.7% | 3.9% |
| Age 18 to 20 | 1.7% | 2.7% | 4.0% |
| Age 21 to 24 | 5.5% | 4.6% | 5.2% |
| Age 25 to 34 | 26.7% | 17.7% | 13.8% |
| Age 35 to 44 | 14.7% | 15.1% | 12.9% |
| Age 45 to 54 | 10.8% | 14.1% | 12.6% |
| Age 55 to 59 | 5.5% | 6.7% | 6.7% |
| Age 60 to 64 | 4.5% | 5.9% | 6.3% |
| Age 65 to 74 | 6.1% | 8.4% | 9.6% |
| Age 75 to 84 | 2.5% | 5.5% | 4.5% |
| Age 85 and over | 1.2% | 2.5% | 1.9% |
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| Race | | | |
| | Harrison town (Hudson County), NJ | Miami, FL | United States |
| White | 23.8% | 11.4% | 59.4% |
| Black | 2.3% | 13.6% | 12.2% |
| Asian | 19.5% | 1.3% | 5.6% |
| Native American | 0.2% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.9% | 0.2% | 0.4% |
| Two or More Races | 1.9% | 1.1% | 3.2% |
| Hispanic | 51.4% | 72.4% | 18.4% |
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| Marriage & Family | | | |
| | Harrison town (Hudson County), NJ | Miami, FL | United States |
| Married Population | 50.3% | 40.7% | 49.8% |
| Currently Married | 49.0% | 37.3% | 48.0% |
| Married but Separated | 1.3% | 3.5% | 1.8% |
| Single Population | 49.7% | 59.3% | 50.2% |
| Never Married | 36.5% | 39.7% | 33.8% |
| Divorced | 8.5% | 13.6% | 10.8% |
| Widowed | 4.7% | 6.0% | 5.6% |
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| Household Size | 2.39 | 2.38 | 2.60 |
| Households | 7,888 | 181,597 | 124,010,992 |
| Family Households | 4,624 | 100,106 | 80,755,759 |
| Married couple, w/children | 32.1% | 22.4% | 30.5% |
| Married couple, no children | 41.7% | 35.4% | 42.9% |
| Non Family Households | 3,264 | 81,491 | 43,255,233 |
| Single householder, w/children | 16.3% | 19.0% | 15.8% |
| Single householder, no children | 10.0% | 23.3% | 10.8% |