| | Boydton, VA | Welch, WV | United States |
| Population | 274 | 3,050 | 329,725,481 |
| Female Population | 53.3% | 34.5% | 50.5% |
| Male Population | 46.7% | 65.5% | 49.5% |
| Median Age | 48.8 | 45 | 38.4 |
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| Population - 2010 | 433 | 2,395 | 309,327,143 |
| Population - 2000 | 454 | 2,683 | 285,036,114 |
| Population - 1990 | 453 | 3,028 | 251,960,433 |
| Pop. 2000 to Now | -9.7% | -41.3% | 15.6% |
| Pop. 1990 to Now | -9.5% | -48.0% | 30.8% |
| space4 | | | |
| Population Density | 334.2 | 505.2 | 93.4 |
| Land Area | 0.8 | 6.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Boydton, VA | Welch, WV | United States |
| Age 0 to 4 | 7.3% | 0.0% | 5.9% |
| Age 5 to 9 | 2.6% | 4.7% | 6.1% |
| Age 10 to 14 | 2.6% | 4.0% | 6.6% |
| Age 15 to 17 | 6.6% | 0.3% | 3.9% |
| Age 18 to 20 | 4.0% | 0.5% | 4.0% |
| Age 21 to 24 | 1.8% | 4.3% | 5.2% |
| Age 25 to 34 | 12.4% | 13.9% | 13.8% |
| Age 35 to 44 | 7.3% | 22.4% | 12.9% |
| Age 45 to 54 | 13.9% | 14.2% | 12.6% |
| Age 55 to 59 | 9.5% | 11.5% | 6.7% |
| Age 60 to 64 | 8.4% | 5.5% | 6.3% |
| Age 65 to 74 | 15.0% | 11.4% | 9.6% |
| Age 75 to 84 | 6.2% | 5.0% | 4.5% |
| Age 85 and over | 2.6% | 2.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Boydton, VA | Welch, WV | United States |
| White | 80.3% | 70.7% | 59.4% |
| Black | 12.8% | 22.0% | 12.2% |
| Asian | 3.3% | 0.0% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.8% | 1.5% | 3.2% |
| Hispanic | 1.8% | 5.5% | 18.4% |
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| Marriage & Family | | | |
| | Boydton, VA | Welch, WV | United States |
| Married Population | 55.4% | 34.1% | 49.8% |
| Currently Married | 52.9% | 31.6% | 48.0% |
| Married but Separated | 2.5% | 2.5% | 1.8% |
| Single Population | 44.6% | 65.9% | 50.2% |
| Never Married | 28.3% | 36.1% | 33.8% |
| Divorced | 8.8% | 20.8% | 10.8% |
| Widowed | 7.5% | 9.0% | 5.6% |
| space5 | | | |
| Household Size | 2.26 | 2.19 | 2.60 |
| Households | 121 | 806 | 124,010,992 |
| Family Households | 60 | 418 | 80,755,759 |
| Married couple, w/children | 36.7% | 10.5% | 30.5% |
| Married couple, no children | 55.0% | 53.1% | 42.9% |
| Non Family Households | 61 | 388 | 43,255,233 |
| Single householder, w/children | 3.3% | 21.1% | 15.8% |
| Single householder, no children | 5.0% | 15.3% | 10.8% |