| PEOPLE | Libertyville | Palo Alto | United States |
| Population | 20,315 | 64,403 | 308,035,306 |
| Pop. Density | 2,305 | 2,697 | 87 |
| Pop. Change | -2.65% | 10.90% | 8.07% |
| Median Age | 42.9 | 41.9 | 37.3 |
| Households | 7,586 | 26,493 | 116,716,292 |
| Household Size | 2.62 | 2.42 | 2.58 |
| Male Population | 48.21% | 48.90% | 49.27% |
| Female Population | 51.79% | 51.10% | 50.96% |
| Married Population | 55.50% | 51.03% | 47.02% |
| Single Population | 44.50% | 48.97% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.09% | 5.44% | 6.56% |
| Age 5 to 9 | 7.22% | 6.80% | 6.61% |
| Age 10 to 14 | 9.11% | 6.85% | 6.71% |
| Age 15 to 17 | 5.61% | 4.32% | 4.21% |
| Age 18 to 20 | 1.96% | 1.27% | 2.95% |
| Age 21 to 24 | 3.37% | 3.61% | 7.01% |
| Age 25 to 34 | 7.31% | 11.85% | 13.33% |
| Age 35 to 44 | 13.75% | 14.79% | 13.33% |
| Age 45 to 49 | 18.69% | 16.14% | 14.61% |
| Age 50 to 54 | 18.69% | 16.14% | 14.61% |
| Age 55 to 59 | 13.98% | 11.84% | 11.84% |
| Age 60 to 64 | 13.98% | 11.84% | 11.84% |
| Age 65 to 74 | 7.23% | 7.93% | 7.05% |
| Age 75 to 84 | 4.09% | 5.68% | 4.24% |
| Age 85 and over | 2.58% | 3.48% | 1.78% |
| RACE | | | |
| White | 90.10% | 64.22% | 72.41% |
| Black | 1.23% | 1.86% | 12.61% |
| Asian | 5.73% | 27.11% | 4.75% |
| American Indian | 0.16% | 0.19% | 0.95% |
| Other | 2.79% | 6.62% | 9.28% |
| Hispanic | 3.49% | 60.71% | 16.35% |
| Non-Hispanic | 96.51% | 39.29% | 83.65% |
| FAMILY | | | |
| Married, w/children | 43.17% | 42.79% | 30.42% |
| Married, no children | 43.43% | 42.02% | 42.46% |
| Single, w/children | 7.36% | 7.94% | 14.39% |
| Single, no children | 6.04% | 7.25% | 12.73% |
| Divorced | 7.87% | 9.78% | 10.62% |
| Separated | 3.78% | 3.94% | 4.97% |
| Widowed | 5.81% | 7.22% | 6.14% |
| Now Married | 55.68% | 50.17% | 46.32% |
| Never Married | 26.86% | 28.89% | 31.95% |
