| PEOPLE | Bartlett | Oakbrook Terrace | United States |
| Population | 54,613 | 2,134 | 308,035,306 |
| Pop. Density | 2,049 | 1,713 | 87 |
| Pop. Change | 22.82% | 0.52% | 8.07% |
| Median Age | 40.4 | 41 | 37.3 |
| Households | 19,456 | 1,097 | 116,716,292 |
| Household Size | 2.77 | 2.06 | 2.58 |
| Male Population | 48.31% | 48.69% | 49.27% |
| Female Population | 51.69% | 51.31% | 50.96% |
| Married Population | 58.66% | 48.09% | 47.02% |
| Single Population | 41.34% | 51.91% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.32% | 4.59% | 6.56% |
| Age 5 to 9 | 6.41% | 3.23% | 6.61% |
| Age 10 to 14 | 8.32% | 2.48% | 6.71% |
| Age 15 to 17 | 5.24% | 2.25% | 4.21% |
| Age 18 to 20 | 2.65% | 1.55% | 2.95% |
| Age 21 to 24 | 4.86% | 7.31% | 7.01% |
| Age 25 to 34 | 10.00% | 21.23% | 13.33% |
| Age 35 to 44 | 14.21% | 12.04% | 13.33% |
| Age 45 to 49 | 16.73% | 12.37% | 14.61% |
| Age 50 to 54 | 16.73% | 12.37% | 14.61% |
| Age 55 to 59 | 13.77% | 13.82% | 11.84% |
| Age 60 to 64 | 13.77% | 13.82% | 11.84% |
| Age 65 to 74 | 7.07% | 9.28% | 7.05% |
| Age 75 to 84 | 3.94% | 6.37% | 4.24% |
| Age 85 and over | 1.47% | 3.47% | 1.78% |
| RACE | | | |
| White | 78.69% | 73.62% | 72.41% |
| Black | 16.06% | 7.73% | 12.61% |
| Asian | 2.50% | 13.73% | 4.75% |
| American Indian | 0.25% | 0.00% | 0.95% |
| Other | 2.49% | 4.92% | 9.28% |
| Hispanic | 2.08% | 0.80% | 16.35% |
| Non-Hispanic | 97.92% | 99.20% | 83.65% |
| FAMILY | | | |
| Married, w/children | 34.07% | 21.88% | 30.42% |
| Married, no children | 47.56% | 56.25% | 42.46% |
| Single, w/children | 9.11% | 8.01% | 14.39% |
| Single, no children | 9.26% | 13.87% | 12.73% |
| Divorced | 8.07% | 8.37% | 10.62% |
| Separated | 2.21% | 6.73% | 4.97% |
| Widowed | 4.71% | 11.86% | 6.14% |
| Now Married | 59.40% | 48.06% | 46.32% |
| Never Married | 25.62% | 24.98% | 31.95% |
