| PEOPLE | Lake Forest | Glencoe | United States |
| Population | 19,375 | 8,723 | 308,035,306 |
| Pop. Density | 1,128 | 2,345 | 87 |
| Pop. Change | -2.73% | -1.61% | 8.07% |
| Median Age | 45.5 | 44 | 37.3 |
| Households | 6,763 | 3,013 | 116,716,292 |
| Household Size | 2.69 | 2.89 | 2.58 |
| Male Population | 48.23% | 49.24% | 49.27% |
| Female Population | 51.77% | 50.76% | 50.96% |
| Married Population | 59.02% | 69.49% | 47.02% |
| Single Population | 40.98% | 30.51% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 3.93% | 4.79% | 6.56% |
| Age 5 to 9 | 7.10% | 9.23% | 6.61% |
| Age 10 to 14 | 9.16% | 10.94% | 6.71% |
| Age 15 to 17 | 5.73% | 6.63% | 4.21% |
| Age 18 to 20 | 3.81% | 1.96% | 2.95% |
| Age 21 to 24 | 6.11% | 2.40% | 7.01% |
| Age 25 to 34 | 3.76% | 3.16% | 13.33% |
| Age 35 to 44 | 9.53% | 12.51% | 13.33% |
| Age 45 to 49 | 18.12% | 19.21% | 14.61% |
| Age 50 to 54 | 18.12% | 19.21% | 14.61% |
| Age 55 to 59 | 15.30% | 14.74% | 11.84% |
| Age 60 to 64 | 15.30% | 14.74% | 11.84% |
| Age 65 to 74 | 8.67% | 8.11% | 7.05% |
| Age 75 to 84 | 5.90% | 4.28% | 4.24% |
| Age 85 and over | 2.87% | 2.05% | 1.78% |
| RACE | | | |
| White | 92.11% | 94.02% | 72.41% |
| Black | 1.10% | 1.23% | 12.61% |
| Asian | 4.67% | 2.69% | 4.75% |
| American Indian | 0.14% | 0.09% | 0.95% |
| Other | 1.98% | 1.97% | 9.28% |
| Hispanic | 1.66% | 0.94% | 16.35% |
| Non-Hispanic | 98.34% | 99.06% | 83.65% |
| FAMILY | | | |
| Married, w/children | 39.64% | 47.66% | 30.42% |
| Married, no children | 50.56% | 43.30% | 42.46% |
| Single, w/children | 5.37% | 5.40% | 14.39% |
| Single, no children | 4.42% | 3.64% | 12.73% |
| Divorced | 5.36% | 5.24% | 10.62% |
| Separated | 4.54% | 2.32% | 4.97% |
| Widowed | 5.37% | 4.59% | 6.14% |
| Now Married | 59.22% | 70.16% | 46.32% |
| Never Married | 25.51% | 17.69% | 31.95% |
