| | Edgefield, SC | Lopatcong, NJ | United States |
| Population | 4,434 | 8,810 | 329,725,481 |
| Female Population | 33.6% | 48.8% | 50.5% |
| Male Population | 66.4% | 51.2% | 49.5% |
| Median Age | 40.9 | 48.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,768 | 8,105 | 309,327,143 |
| Population - 2000 | 4,449 | 5,765 | 285,036,114 |
| Population - 1990 | 2,563 | 5,052 | 251,960,433 |
| Pop. 2000 to Now | 8.5% | 47.8% | 15.6% |
| Pop. 1990 to Now | 88.3% | 68.6% | 30.8% |
| space4 | | | |
| Population Density | 1,056.5 | 1,241.2 | 93.4 |
| Land Area | 4.2 | 7.1 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Edgefield, SC | Lopatcong, NJ | United States |
| Age 0 to 4 | 1.6% | 3.7% | 5.9% |
| Age 5 to 9 | 4.1% | 3.6% | 6.1% |
| Age 10 to 14 | 1.8% | 6.1% | 6.6% |
| Age 15 to 17 | 2.8% | 3.0% | 3.9% |
| Age 18 to 20 | 7.0% | 1.3% | 4.0% |
| Age 21 to 24 | 3.8% | 3.7% | 5.2% |
| Age 25 to 34 | 14.0% | 14.4% | 13.8% |
| Age 35 to 44 | 22.6% | 12.0% | 12.9% |
| Age 45 to 54 | 16.4% | 10.8% | 12.6% |
| Age 55 to 59 | 6.2% | 10.0% | 6.7% |
| Age 60 to 64 | 5.4% | 7.7% | 6.3% |
| Age 65 to 74 | 9.8% | 12.1% | 9.6% |
| Age 75 to 84 | 3.2% | 5.9% | 4.5% |
| Age 85 and over | 1.4% | 5.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Edgefield, SC | Lopatcong, NJ | United States |
| White | 33.7% | 73.5% | 59.4% |
| Black | 54.3% | 10.1% | 12.2% |
| Asian | 0.2% | 4.2% | 5.6% |
| Native American | 0.5% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.6% | 1.1% | 3.2% |
| Hispanic | 9.6% | 11.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Edgefield, SC | Lopatcong, NJ | United States |
| Married Population | 25.7% | 54.1% | 49.8% |
| Currently Married | 22.7% | 52.8% | 48.0% |
| Married but Separated | 3.0% | 1.3% | 1.8% |
| Single Population | 74.3% | 45.9% | 50.2% |
| Never Married | 52.9% | 26.7% | 33.8% |
| Divorced | 15.8% | 9.6% | 10.8% |
| Widowed | 5.6% | 9.5% | 5.6% |
| space5 | | | |
| Household Size | 2.27 | 2.24 | 2.60 |
| Households | 1,170 | 3,822 | 124,010,992 |
| Family Households | 730 | 2,260 | 80,755,759 |
| Married couple, w/children | 14.2% | 32.2% | 30.5% |
| Married couple, no children | 35.1% | 50.4% | 42.9% |
| Non Family Households | 440 | 1,562 | 43,255,233 |
| Single householder, w/children | 30.1% | 8.6% | 15.8% |
| Single householder, no children | 20.5% | 8.8% | 10.8% |