| | Moorestown, NJ | Milton, DE | United States |
| Population | 21,265 | 3,224 | 329,725,481 |
| Female Population | 51.8% | 62.9% | 50.5% |
| Male Population | 48.2% | 37.1% | 49.5% |
| Median Age | 44.4 | 42.5 | 38.4 |
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| Population - 2010 | 20,751 | 2,588 | 309,327,143 |
| Population - 2000 | 19,017 | 1,657 | 285,036,114 |
| Population - 1990 | 16,116 | 1,417 | 251,960,433 |
| Pop. 2000 to Now | 8.4% | 88.8% | 15.6% |
| Pop. 1990 to Now | 27.9% | 120.8% | 30.8% |
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| Population Density | 1,447.3 | 1,801.1 | 93.4 |
| Land Area | 14.7 | 1.8 | 3,531,905.4 |
| Water Area | 0.2 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Moorestown, NJ | Milton, DE | United States |
| Age 0 to 4 | 3.9% | 13.0% | 5.9% |
| Age 5 to 9 | 7.4% | 6.1% | 6.1% |
| Age 10 to 14 | 7.1% | 8.2% | 6.6% |
| Age 15 to 17 | 6.3% | 3.7% | 3.9% |
| Age 18 to 20 | 2.5% | 0.2% | 4.0% |
| Age 21 to 24 | 4.6% | 0.2% | 5.2% |
| Age 25 to 34 | 6.9% | 8.9% | 13.8% |
| Age 35 to 44 | 11.8% | 11.9% | 12.9% |
| Age 45 to 54 | 16.8% | 6.2% | 12.6% |
| Age 55 to 59 | 9.3% | 2.6% | 6.7% |
| Age 60 to 64 | 6.9% | 8.6% | 6.3% |
| Age 65 to 74 | 9.9% | 20.2% | 9.6% |
| Age 75 to 84 | 3.9% | 8.7% | 4.5% |
| Age 85 and over | 2.6% | 1.4% | 1.9% |
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| Race | | | |
| | Moorestown, NJ | Milton, DE | United States |
| White | 78.7% | 83.6% | 59.4% |
| Black | 3.9% | 7.7% | 12.2% |
| Asian | 7.6% | 0.1% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.4% | 0.4% |
| Two or More Races | 3.9% | 1.4% | 3.2% |
| Hispanic | 5.5% | 6.8% | 18.4% |
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| Marriage & Family | | | |
| | Moorestown, NJ | Milton, DE | United States |
| Married Population | 62.9% | 55.0% | 49.8% |
| Currently Married | 62.6% | 52.1% | 48.0% |
| Married but Separated | 0.3% | 2.9% | 1.8% |
| Single Population | 37.1% | 45.0% | 50.2% |
| Never Married | 24.2% | 20.8% | 33.8% |
| Divorced | 7.9% | 11.3% | 10.8% |
| Widowed | 5.1% | 12.9% | 5.6% |
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| Household Size | 2.78 | 2.36 | 2.60 |
| Households | 7,528 | 1,363 | 124,010,992 |
| Family Households | 5,933 | 867 | 80,755,759 |
| Married couple, w/children | 42.2% | 20.4% | 30.5% |
| Married couple, no children | 44.3% | 44.6% | 42.9% |
| Non Family Households | 1,595 | 496 | 43,255,233 |
| Single householder, w/children | 7.8% | 30.8% | 15.8% |
| Single householder, no children | 5.7% | 4.2% | 10.8% |