| PEOPLE | Lake St. Louis | Gainesville | United States |
| Population | 14,545 | 124,354 | 308,035,306 |
| Pop. Density | 1,840 | 2,028 | 87 |
| Pop. Change | 46.45% | 4.78% | 8.07% |
| Median Age | 41.4 | 25 | 37.3 |
| Households | 5,816 | 51,029 | 116,716,292 |
| Household Size | 2.57 | 2.2 | 2.58 |
| Male Population | 49.52% | 48.42% | 49.27% |
| Female Population | 50.48% | 51.58% | 50.96% |
| Married Population | 64.76% | 27.02% | 47.02% |
| Single Population | 35.24% | 72.98% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.75% | 4.43% | 6.56% |
| Age 5 to 9 | 6.52% | 3.46% | 6.61% |
| Age 10 to 14 | 7.14% | 3.26% | 6.71% |
| Age 15 to 17 | 3.99% | 2.22% | 4.21% |
| Age 18 to 20 | 2.15% | 9.93% | 2.95% |
| Age 21 to 24 | 4.97% | 26.90% | 7.01% |
| Age 25 to 34 | 11.19% | 16.93% | 13.33% |
| Age 35 to 44 | 13.36% | 8.10% | 13.33% |
| Age 45 to 49 | 15.38% | 8.46% | 14.61% |
| Age 50 to 54 | 15.38% | 8.46% | 14.61% |
| Age 55 to 59 | 13.57% | 8.01% | 11.84% |
| Age 60 to 64 | 13.57% | 8.01% | 11.84% |
| Age 65 to 74 | 9.93% | 4.14% | 7.05% |
| Age 75 to 84 | 5.06% | 2.83% | 4.24% |
| Age 85 and over | 0.98% | 1.34% | 1.78% |
| RACE | | | |
| White | 92.23% | 64.92% | 72.41% |
| Black | 3.82% | 22.98% | 12.61% |
| Asian | 2.13% | 6.86% | 4.75% |
| American Indian | 0.25% | 0.30% | 0.95% |
| Other | 1.57% | 4.94% | 9.28% |
| Hispanic | 67.86% | 2.58% | 16.35% |
| Non-Hispanic | 32.14% | 97.42% | 83.65% |
| FAMILY | | | |
| Married, w/children | 31.14% | 21.21% | 30.42% |
| Married, no children | 52.86% | 37.96% | 42.46% |
| Single, w/children | 9.64% | 19.04% | 14.39% |
| Single, no children | 6.36% | 21.80% | 12.73% |
| Divorced | 7.79% | 9.16% | 10.62% |
| Separated | 2.11% | 4.44% | 4.97% |
| Widowed | 3.21% | 4.63% | 6.14% |
| Now Married | 65.93% | 27.34% | 46.32% |
| Never Married | 20.96% | 54.43% | 31.95% |