| | Dillon, SC | Bennettsville, SC | United States |
| Population | 6,354 | 7,306 | 329,725,481 |
| Female Population | 47.4% | 49.0% | 50.5% |
| Male Population | 52.6% | 51.0% | 49.5% |
| Median Age | 35 | 39.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 6,809 | 9,191 | 309,327,143 |
| Population - 2000 | 6,316 | 9,425 | 285,036,114 |
| Population - 1990 | 6,829 | 9,345 | 251,960,433 |
| Pop. 2000 to Now | -0.4% | -20.9% | 15.6% |
| Pop. 1990 to Now | -7.9% | -20.2% | 30.8% |
| space4 | | | |
| Population Density | 1,206.6 | 1,192.6 | 93.4 |
| Land Area | 5.3 | 6.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.6 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Dillon, SC | Bennettsville, SC | United States |
| Age 0 to 4 | 12.9% | 7.2% | 5.9% |
| Age 5 to 9 | 7.4% | 7.2% | 6.1% |
| Age 10 to 14 | 4.9% | 4.0% | 6.6% |
| Age 15 to 17 | 5.0% | 1.3% | 3.9% |
| Age 18 to 20 | 2.3% | 5.3% | 4.0% |
| Age 21 to 24 | 5.3% | 4.3% | 5.2% |
| Age 25 to 34 | 12.1% | 16.0% | 13.8% |
| Age 35 to 44 | 12.9% | 14.3% | 12.9% |
| Age 45 to 54 | 9.9% | 13.3% | 12.6% |
| Age 55 to 59 | 7.1% | 2.8% | 6.7% |
| Age 60 to 64 | 5.9% | 6.6% | 6.3% |
| Age 65 to 74 | 7.6% | 8.7% | 9.6% |
| Age 75 to 84 | 5.5% | 5.9% | 4.5% |
| Age 85 and over | 1.2% | 3.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Dillon, SC | Bennettsville, SC | United States |
| White | 43.2% | 30.1% | 59.4% |
| Black | 48.3% | 62.4% | 12.2% |
| Asian | 0.0% | 0.8% | 5.6% |
| Native American | 1.6% | 0.8% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.5% | 0.4% |
| Two or More Races | 0.6% | 2.1% | 3.2% |
| Hispanic | 6.3% | 3.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Dillon, SC | Bennettsville, SC | United States |
| Married Population | 46.5% | 26.5% | 49.8% |
| Currently Married | 43.6% | 21.5% | 48.0% |
| Married but Separated | 2.9% | 5.0% | 1.8% |
| Single Population | 53.5% | 73.5% | 50.2% |
| Never Married | 39.8% | 51.6% | 33.8% |
| Divorced | 5.5% | 11.1% | 10.8% |
| Widowed | 8.1% | 10.8% | 5.6% |
| space5 | | | |
| Household Size | 2.81 | 2.32 | 2.60 |
| Households | 2,195 | 2,634 | 124,010,992 |
| Family Households | 1,616 | 1,243 | 80,755,759 |
| Married couple, w/children | 25.6% | 18.9% | 30.5% |
| Married couple, no children | 33.2% | 28.2% | 42.9% |
| Non Family Households | 579 | 1,391 | 43,255,233 |
| Single householder, w/children | 28.5% | 40.6% | 15.8% |
| Single householder, no children | 12.6% | 12.2% | 10.8% |