| | Starr, SC | Gantt, SC | United States |
| Population | 149 | 14,790 | 329,725,481 |
| Female Population | 51.7% | 55.8% | 50.5% |
| Male Population | 48.3% | 44.2% | 49.5% |
| Median Age | 36.4 | 33.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 178 | 13,874 | 309,327,143 |
| Population - 2000 | 173 | 13,962 | 285,036,114 |
| Population - 1990 | 164 | 13,891 | 251,960,433 |
| Pop. 2000 to Now | 11.0% | 19.5% | 15.6% |
| Pop. 1990 to Now | 17.1% | 20.1% | 30.8% |
| space4 | | | |
| Population Density | 99.5 | 1,510.9 | 93.4 |
| Land Area | 1.5 | 9.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Starr, SC | Gantt, SC | United States |
| Age 0 to 4 | 5.4% | 9.3% | 5.9% |
| Age 5 to 9 | 6.7% | 10.6% | 6.1% |
| Age 10 to 14 | 8.1% | 6.1% | 6.6% |
| Age 15 to 17 | 5.4% | 4.2% | 3.9% |
| Age 18 to 20 | 6.0% | 2.8% | 4.0% |
| Age 21 to 24 | 9.4% | 7.9% | 5.2% |
| Age 25 to 34 | 6.7% | 10.4% | 13.8% |
| Age 35 to 44 | 17.5% | 14.0% | 12.9% |
| Age 45 to 54 | 9.4% | 11.2% | 12.6% |
| Age 55 to 59 | 3.4% | 5.3% | 6.7% |
| Age 60 to 64 | 12.1% | 4.3% | 6.3% |
| Age 65 to 74 | 6.0% | 8.1% | 9.6% |
| Age 75 to 84 | 4.0% | 4.1% | 4.5% |
| Age 85 and over | 0.0% | 1.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Starr, SC | Gantt, SC | United States |
| White | 82.6% | 24.2% | 59.4% |
| Black | 9.4% | 50.9% | 12.2% |
| Asian | 0.0% | 0.1% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 8.1% | 1.8% | 3.2% |
| Hispanic | 0.0% | 22.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Starr, SC | Gantt, SC | United States |
| Married Population | 35.3% | 43.7% | 49.8% |
| Currently Married | 32.8% | 39.6% | 48.0% |
| Married but Separated | 2.5% | 4.0% | 1.8% |
| Single Population | 64.7% | 56.3% | 50.2% |
| Never Married | 35.3% | 38.0% | 33.8% |
| Divorced | 21.8% | 10.1% | 10.8% |
| Widowed | 7.6% | 8.2% | 5.6% |
| space5 | | | |
| Household Size | 2.92 | 2.68 | 2.60 |
| Households | 51 | 5,512 | 124,010,992 |
| Family Households | 31 | 3,718 | 80,755,759 |
| Married couple, w/children | 38.7% | 21.2% | 30.5% |
| Married couple, no children | 22.6% | 31.6% | 42.9% |
| Non Family Households | 20 | 1,794 | 43,255,233 |
| Single householder, w/children | 32.3% | 33.2% | 15.8% |
| Single householder, no children | 6.5% | 13.9% | 10.8% |