| PEOPLE | Ballwin | Evans | United States |
| Population | 30,404 | 29,011 | 308,035,306 |
| Pop. Density | 3,382 | 1,148 | 87 |
| Pop. Change | -3.96% | 52.61% | 8.07% |
| Median Age | 41.3 | 39.3 | 37.3 |
| Households | 11,874 | 9,996 | 116,716,292 |
| Household Size | 2.58 | 2.86 | 2.58 |
| Male Population | 48.16% | 47.96% | 49.27% |
| Female Population | 51.84% | 52.04% | 50.96% |
| Married Population | 61.55% | 58.98% | 47.02% |
| Single Population | 38.45% | 41.02% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.88% | 5.88% | 6.56% |
| Age 5 to 9 | 7.14% | 7.65% | 6.61% |
| Age 10 to 14 | 7.37% | 9.14% | 6.71% |
| Age 15 to 17 | 4.48% | 5.57% | 4.21% |
| Age 18 to 20 | 2.14% | 2.80% | 2.95% |
| Age 21 to 24 | 4.70% | 4.24% | 7.01% |
| Age 25 to 34 | 10.27% | 8.34% | 13.33% |
| Age 35 to 44 | 13.47% | 15.38% | 13.33% |
| Age 45 to 49 | 16.54% | 17.27% | 14.61% |
| Age 50 to 54 | 16.54% | 17.27% | 14.61% |
| Age 55 to 59 | 12.92% | 12.77% | 11.84% |
| Age 60 to 64 | 12.92% | 12.77% | 11.84% |
| Age 65 to 74 | 8.04% | 6.00% | 7.05% |
| Age 75 to 84 | 5.49% | 3.16% | 4.24% |
| Age 85 and over | 1.57% | 1.80% | 1.78% |
| RACE | | | |
| White | 89.34% | 79.90% | 72.41% |
| Black | 2.46% | 11.42% | 12.61% |
| Asian | 5.60% | 5.06% | 4.75% |
| American Indian | 0.22% | 0.24% | 0.95% |
| Other | 2.37% | 3.38% | 9.28% |
| Hispanic | 4.96% | 71.42% | 16.35% |
| Non-Hispanic | 95.04% | 28.58% | 83.65% |
| FAMILY | | | |
| Married, w/children | 36.23% | 42.14% | 30.42% |
| Married, no children | 47.57% | 43.87% | 42.46% |
| Single, w/children | 8.37% | 7.95% | 14.39% |
| Single, no children | 7.83% | 6.03% | 12.73% |
| Divorced | 8.35% | 9.01% | 10.62% |
| Separated | 1.34% | 4.63% | 4.97% |
| Widowed | 4.42% | 5.79% | 6.14% |
| Now Married | 60.90% | 58.27% | 46.32% |
| Never Married | 25.00% | 22.29% | 31.95% |
