| PEOPLE | Marysville | Summerville | United States |
| Population | 60,020 | 43,392 | 308,035,306 |
| Pop. Density | 2,902 | 2,405 | 87 |
| Pop. Change | 25.63% | 42.55% | 8.07% |
| Median Age | 34.2 | 34.7 | 37.3 |
| Households | 21,219 | 16,866 | 116,716,292 |
| Household Size | 2.8 | 2.58 | 2.58 |
| Male Population | 49.39% | 47.16% | 49.27% |
| Female Population | 50.61% | 52.84% | 50.96% |
| Married Population | 56.81% | 51.02% | 47.02% |
| Single Population | 43.19% | 48.98% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.79% | 7.43% | 6.56% |
| Age 5 to 9 | 7.54% | 7.62% | 6.61% |
| Age 10 to 14 | 7.56% | 7.45% | 6.71% |
| Age 15 to 17 | 4.64% | 4.51% | 4.21% |
| Age 18 to 20 | 2.64% | 2.41% | 2.95% |
| Age 21 to 24 | 6.39% | 6.38% | 7.01% |
| Age 25 to 34 | 14.58% | 14.58% | 13.33% |
| Age 35 to 44 | 14.27% | 14.38% | 13.33% |
| Age 45 to 49 | 14.45% | 13.83% | 14.61% |
| Age 50 to 54 | 14.45% | 13.83% | 14.61% |
| Age 55 to 59 | 10.27% | 10.89% | 11.84% |
| Age 60 to 64 | 10.27% | 10.89% | 11.84% |
| Age 65 to 74 | 5.22% | 5.73% | 7.05% |
| Age 75 to 84 | 3.21% | 3.29% | 4.24% |
| Age 85 and over | 1.44% | 1.49% | 1.78% |
| RACE | | | |
| White | 80.02% | 72.07% | 72.41% |
| Black | 1.86% | 21.44% | 12.61% |
| Asian | 5.63% | 1.51% | 4.75% |
| American Indian | 1.95% | 0.40% | 0.95% |
| Other | 10.54% | 4.58% | 9.28% |
| Hispanic | 0.00% | 1.07% | 16.35% |
| Non-Hispanic | 100.00% | 98.93% | 83.65% |
| FAMILY | | | |
| Married, w/children | 35.47% | 32.56% | 30.42% |
| Married, no children | 38.78% | 38.40% | 42.46% |
| Single, w/children | 15.26% | 18.14% | 14.39% |
| Single, no children | 10.49% | 10.90% | 12.73% |
| Divorced | 10.71% | 10.44% | 10.62% |
| Separated | 3.71% | 4.66% | 4.97% |
| Widowed | 5.25% | 5.41% | 6.14% |
| Now Married | 57.06% | 50.20% | 46.32% |
| Never Married | 23.27% | 29.29% | 31.95% |
