| PEOPLE | Lewisville | Rock Hill | United States |
| Population | 95,290 | 66,154 | 308,035,306 |
| Pop. Density | 2,618 | 1,852 | 87 |
| Pop. Change | 29.25% | 26.36% | 8.07% |
| Median Age | 31 | 32 | 37.3 |
| Households | 37,496 | 25,966 | 116,716,292 |
| Household Size | 2.53 | 2.44 | 2.58 |
| Male Population | 49.36% | 46.04% | 49.27% |
| Female Population | 50.64% | 53.96% | 50.96% |
| Married Population | 47.50% | 40.64% | 47.02% |
| Single Population | 52.50% | 59.36% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 8.28% | 7.41% | 6.56% |
| Age 5 to 9 | 7.36% | 6.69% | 6.61% |
| Age 10 to 14 | 6.35% | 6.33% | 6.71% |
| Age 15 to 17 | 3.71% | 3.94% | 4.21% |
| Age 18 to 20 | 2.38% | 4.17% | 2.95% |
| Age 21 to 24 | 8.84% | 10.55% | 7.01% |
| Age 25 to 34 | 20.46% | 15.12% | 13.33% |
| Age 35 to 44 | 15.28% | 13.37% | 13.33% |
| Age 45 to 49 | 12.89% | 12.30% | 14.61% |
| Age 50 to 54 | 12.89% | 12.30% | 14.61% |
| Age 55 to 59 | 7.89% | 9.72% | 11.84% |
| Age 60 to 64 | 7.89% | 9.72% | 11.84% |
| Age 65 to 74 | 3.82% | 5.37% | 7.05% |
| Age 75 to 84 | 1.88% | 3.28% | 4.24% |
| Age 85 and over | 0.84% | 1.76% | 1.78% |
| RACE | | | |
| White | 65.34% | 54.64% | 72.41% |
| Black | 11.19% | 38.32% | 12.61% |
| Asian | 7.76% | 1.69% | 4.75% |
| American Indian | 0.65% | 0.49% | 0.95% |
| Other | 15.06% | 4.87% | 9.28% |
| Hispanic | 1.92% | 0.26% | 16.35% |
| Non-Hispanic | 98.08% | 99.74% | 83.65% |
| FAMILY | | | |
| Married, w/children | 36.01% | 26.55% | 30.42% |
| Married, no children | 35.24% | 34.99% | 42.46% |
| Single, w/children | 16.86% | 21.80% | 14.39% |
| Single, no children | 11.89% | 16.66% | 12.73% |
| Divorced | 11.42% | 10.56% | 10.62% |
| Separated | 5.05% | 6.03% | 4.97% |
| Widowed | 2.63% | 7.05% | 6.14% |
| Now Married | 47.02% | 40.34% | 46.32% |
| Never Married | 33.88% | 36.02% | 31.95% |