| PEOPLE | Quincy | Glenview | United States |
| Population | 92,271 | 44,692 | 308,035,306 |
| Pop. Density | 5,568 | 3,204 | 87 |
| Pop. Change | 4.45% | 6.79% | 8.07% |
| Median Age | 39.2 | 45.5 | 37.3 |
| Households | 40,658 | 16,783 | 116,716,292 |
| Household Size | 2.24 | 2.63 | 2.58 |
| Male Population | 47.90% | 47.43% | 49.27% |
| Female Population | 52.10% | 52.57% | 50.96% |
| Married Population | 39.81% | 60.37% | 47.02% |
| Single Population | 60.19% | 39.63% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.39% | 5.17% | 6.56% |
| Age 5 to 9 | 4.40% | 7.59% | 6.61% |
| Age 10 to 14 | 4.13% | 7.40% | 6.71% |
| Age 15 to 17 | 2.66% | 4.45% | 4.21% |
| Age 18 to 20 | 1.84% | 1.80% | 2.95% |
| Age 21 to 24 | 6.85% | 3.58% | 7.01% |
| Age 25 to 34 | 18.55% | 6.55% | 13.33% |
| Age 35 to 44 | 14.21% | 12.71% | 13.33% |
| Age 45 to 49 | 14.84% | 16.43% | 14.61% |
| Age 50 to 54 | 14.84% | 16.43% | 14.61% |
| Age 55 to 59 | 12.05% | 14.58% | 11.84% |
| Age 60 to 64 | 12.05% | 14.58% | 11.84% |
| Age 65 to 74 | 7.20% | 9.15% | 7.05% |
| Age 75 to 84 | 5.17% | 6.57% | 4.24% |
| Age 85 and over | 2.70% | 4.01% | 1.78% |
| RACE | | | |
| White | 67.30% | 83.24% | 72.41% |
| Black | 4.60% | 1.01% | 12.61% |
| Asian | 24.03% | 12.46% | 4.75% |
| American Indian | 0.19% | 0.12% | 0.95% |
| Other | 3.87% | 3.17% | 9.28% |
| Hispanic | 1.59% | 1.07% | 16.35% |
| Non-Hispanic | 98.41% | 98.93% | 83.65% |
| FAMILY | | | |
| Married, w/children | 28.31% | 38.91% | 30.42% |
| Married, no children | 43.69% | 48.17% | 42.46% |
| Single, w/children | 11.16% | 5.29% | 14.39% |
| Single, no children | 16.84% | 7.63% | 12.73% |
| Divorced | 9.53% | 8.36% | 10.62% |
| Separated | 4.29% | 2.97% | 4.97% |
| Widowed | 7.17% | 5.60% | 6.14% |
| Now Married | 39.21% | 60.87% | 46.32% |
| Never Married | 39.80% | 22.21% | 31.95% |
