| | Galloway, NJ | Hammonton, NJ | United States |
| Population | 37,715 | 14,695 | 329,725,481 |
| Female Population | 51.8% | 50.3% | 50.5% |
| Male Population | 48.2% | 49.8% | 49.5% |
| Median Age | 43.1 | 45.3 | 38.4 |
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| Population - 2010 | 37,205 | 14,759 | 309,327,143 |
| Population - 2000 | 31,209 | 12,604 | 285,036,114 |
| Population - 1990 | 23,330 | 12,208 | 251,960,433 |
| Pop. 2000 to Now | 13.7% | 10.3% | 15.6% |
| Pop. 1990 to Now | 52.1% | 13.9% | 30.8% |
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| Population Density | 423.4 | 360.6 | 93.4 |
| Land Area | 89.1 | 40.7 | 3,531,905.4 |
| Water Area | 26.1 | 0.6 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Galloway, NJ | Hammonton, NJ | United States |
| Age 0 to 4 | 2.6% | 4.2% | 5.9% |
| Age 5 to 9 | 4.8% | 6.5% | 6.1% |
| Age 10 to 14 | 5.1% | 5.0% | 6.6% |
| Age 15 to 17 | 3.7% | 4.5% | 3.9% |
| Age 18 to 20 | 8.4% | 3.5% | 4.0% |
| Age 21 to 24 | 6.4% | 3.4% | 5.2% |
| Age 25 to 34 | 12.7% | 11.8% | 13.8% |
| Age 35 to 44 | 9.0% | 10.9% | 12.9% |
| Age 45 to 54 | 11.6% | 14.3% | 12.6% |
| Age 55 to 59 | 8.6% | 7.0% | 6.7% |
| Age 60 to 64 | 7.7% | 6.8% | 6.3% |
| Age 65 to 74 | 10.3% | 11.0% | 9.6% |
| Age 75 to 84 | 6.5% | 7.7% | 4.5% |
| Age 85 and over | 2.7% | 3.6% | 1.9% |
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| Race | | | |
| | Galloway, NJ | Hammonton, NJ | United States |
| White | 64.2% | 71.7% | 59.4% |
| Black | 9.3% | 1.8% | 12.2% |
| Asian | 8.2% | 1.6% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 4.5% | 0.3% | 3.2% |
| Hispanic | 13.3% | 24.5% | 18.4% |
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| Marriage & Family | | | |
| | Galloway, NJ | Hammonton, NJ | United States |
| Married Population | 43.1% | 47.0% | 49.8% |
| Currently Married | 42.4% | 45.3% | 48.0% |
| Married but Separated | 0.7% | 1.8% | 1.8% |
| Single Population | 56.9% | 53.0% | 50.2% |
| Never Married | 39.2% | 30.8% | 33.8% |
| Divorced | 11.5% | 14.2% | 10.8% |
| Widowed | 6.3% | 8.0% | 5.6% |
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| Household Size | 2.52 | 2.57 | 2.60 |
| Households | 13,713 | 5,532 | 124,010,992 |
| Family Households | 8,980 | 3,752 | 80,755,759 |
| Married couple, w/children | 23.6% | 28.8% | 30.5% |
| Married couple, no children | 46.7% | 39.7% | 42.9% |
| Non Family Households | 4,733 | 1,780 | 43,255,233 |
| Single householder, w/children | 12.0% | 16.3% | 15.8% |
| Single householder, no children | 17.7% | 15.3% | 10.8% |