| PEOPLE | Lorton | Dumfries | United States |
| Population | 18,610 | 4,961 | 308,035,306 |
| Pop. Density | 3,508 | 3,214 | 87 |
| Pop. Change | 44.65% | 7.35% | 8.07% |
| Median Age | 34.2 | 30.2 | 37.3 |
| Households | 6,422 | 1,531 | 116,716,292 |
| Household Size | 2.88 | 3.16 | 2.58 |
| Male Population | 47.67% | 49.10% | 49.27% |
| Female Population | 52.33% | 50.90% | 50.96% |
| Married Population | 48.35% | 40.18% | 47.02% |
| Single Population | 51.65% | 59.82% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 8.29% | 9.15% | 6.56% |
| Age 5 to 9 | 7.98% | 8.63% | 6.61% |
| Age 10 to 14 | 7.05% | 7.96% | 6.71% |
| Age 15 to 17 | 4.48% | 4.82% | 4.21% |
| Age 18 to 20 | 2.16% | 3.12% | 2.95% |
| Age 21 to 24 | 5.85% | 7.92% | 7.01% |
| Age 25 to 34 | 15.57% | 14.98% | 13.33% |
| Age 35 to 44 | 17.37% | 14.49% | 13.33% |
| Age 45 to 49 | 15.53% | 13.95% | 14.61% |
| Age 50 to 54 | 15.53% | 13.95% | 14.61% |
| Age 55 to 59 | 8.54% | 8.99% | 11.84% |
| Age 60 to 64 | 8.54% | 8.99% | 11.84% |
| Age 65 to 74 | 2.97% | 3.95% | 7.05% |
| Age 75 to 84 | 2.08% | 1.79% | 4.24% |
| Age 85 and over | 2.11% | 0.24% | 1.78% |
| RACE | | | |
| White | 38.99% | 39.55% | 72.41% |
| Black | 29.94% | 35.07% | 12.61% |
| Asian | 18.19% | 4.29% | 4.75% |
| American Indian | 0.31% | 1.47% | 0.95% |
| Other | 12.57% | 19.61% | 9.28% |
| Hispanic | 1.22% | 1.01% | 16.35% |
| Non-Hispanic | 98.78% | 98.99% | 83.65% |
| FAMILY | | | |
| Married, w/children | 40.93% | 30.37% | 30.42% |
| Married, no children | 31.77% | 29.14% | 42.46% |
| Single, w/children | 16.39% | 22.69% | 14.39% |
| Single, no children | 10.91% | 17.80% | 12.73% |
| Divorced | 11.71% | 10.87% | 10.62% |
| Separated | 7.08% | 9.44% | 4.97% |
| Widowed | 2.89% | 4.32% | 6.14% |
| Now Married | 48.68% | 40.08% | 46.32% |
| Never Married | 29.65% | 35.30% | 31.95% |
