| | Easley, SC | Hackettstown, NJ | United States |
| Population | 22,643 | 10,221 | 329,725,481 |
| Female Population | 52.6% | 53.1% | 50.5% |
| Male Population | 47.4% | 46.9% | 49.5% |
| Median Age | 44.4 | 38.3 | 38.4 |
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| Population - 2010 | 20,068 | 9,721 | 309,327,143 |
| Population - 2000 | 17,754 | 10,403 | 285,036,114 |
| Population - 1990 | 15,195 | 8,120 | 251,960,433 |
| Pop. 2000 to Now | 21.8% | -9.9% | 15.6% |
| Pop. 1990 to Now | 42.3% | 15.4% | 30.8% |
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| Population Density | 1,819.7 | 2,829.7 | 93.4 |
| Land Area | 12.4 | 3.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Easley, SC | Hackettstown, NJ | United States |
| Age 0 to 4 | 5.7% | 3.7% | 5.9% |
| Age 5 to 9 | 4.4% | 6.0% | 6.1% |
| Age 10 to 14 | 5.0% | 5.5% | 6.6% |
| Age 15 to 17 | 3.7% | 5.4% | 3.9% |
| Age 18 to 20 | 2.2% | 9.1% | 4.0% |
| Age 21 to 24 | 4.8% | 6.2% | 5.2% |
| Age 25 to 34 | 12.4% | 8.7% | 13.8% |
| Age 35 to 44 | 12.7% | 15.0% | 12.9% |
| Age 45 to 54 | 12.9% | 13.1% | 12.6% |
| Age 55 to 59 | 6.7% | 5.0% | 6.7% |
| Age 60 to 64 | 9.0% | 5.6% | 6.3% |
| Age 65 to 74 | 11.6% | 9.5% | 9.6% |
| Age 75 to 84 | 6.9% | 4.6% | 4.5% |
| Age 85 and over | 1.9% | 2.5% | 1.9% |
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| Race | | | |
| | Easley, SC | Hackettstown, NJ | United States |
| White | 81.8% | 69.1% | 59.4% |
| Black | 10.7% | 2.2% | 12.2% |
| Asian | 1.0% | 5.2% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.1% | 0.4% | 0.4% |
| Two or More Races | 1.7% | 2.1% | 3.2% |
| Hispanic | 4.6% | 21.0% | 18.4% |
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| Marriage & Family | | | |
| | Easley, SC | Hackettstown, NJ | United States |
| Married Population | 55.5% | 48.7% | 49.8% |
| Currently Married | 52.6% | 46.4% | 48.0% |
| Married but Separated | 3.0% | 2.3% | 1.8% |
| Single Population | 44.5% | 51.3% | 50.2% |
| Never Married | 25.4% | 37.7% | 33.8% |
| Divorced | 11.1% | 9.5% | 10.8% |
| Widowed | 8.0% | 4.1% | 5.6% |
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| Household Size | 2.33 | 2.58 | 2.60 |
| Households | 9,625 | 3,645 | 124,010,992 |
| Family Households | 6,067 | 2,509 | 80,755,759 |
| Married couple, w/children | 30.1% | 36.8% | 30.5% |
| Married couple, no children | 48.9% | 38.5% | 42.9% |
| Non Family Households | 3,558 | 1,136 | 43,255,233 |
| Single householder, w/children | 8.8% | 16.1% | 15.8% |
| Single householder, no children | 12.1% | 8.6% | 10.8% |