| PEOPLE | Willowbrook (DuPage county) | Elk Grove Village | United States |
| Population | 8,540 | 33,127 | 308,035,306 |
| Pop. Density | 3,179 | 2,921 | 87 |
| Pop. Change | -0.31% | -9.46% | 8.07% |
| Median Age | 46.3 | 42.3 | 37.3 |
| Households | 4,032 | 13,307 | 116,716,292 |
| Household Size | 2.19 | 2.49 | 2.58 |
| Male Population | 45.53% | 48.21% | 49.27% |
| Female Population | 54.47% | 51.79% | 50.96% |
| Married Population | 46.97% | 54.79% | 47.02% |
| Single Population | 53.03% | 45.21% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 3.97% | 4.87% | 6.56% |
| Age 5 to 9 | 4.18% | 5.06% | 6.61% |
| Age 10 to 14 | 4.96% | 6.23% | 6.71% |
| Age 15 to 17 | 3.50% | 4.38% | 4.21% |
| Age 18 to 20 | 1.55% | 2.32% | 2.95% |
| Age 21 to 24 | 4.82% | 5.69% | 7.01% |
| Age 25 to 34 | 13.33% | 12.27% | 13.33% |
| Age 35 to 44 | 11.90% | 12.83% | 13.33% |
| Age 45 to 49 | 15.08% | 17.71% | 14.61% |
| Age 50 to 54 | 15.08% | 17.71% | 14.61% |
| Age 55 to 59 | 15.27% | 13.84% | 11.84% |
| Age 60 to 64 | 15.27% | 13.84% | 11.84% |
| Age 65 to 74 | 10.32% | 7.60% | 7.05% |
| Age 75 to 84 | 7.42% | 5.25% | 4.24% |
| Age 85 and over | 3.70% | 1.93% | 1.78% |
| RACE | | | |
| White | 78.70% | 82.91% | 72.41% |
| Black | 4.74% | 1.42% | 12.61% |
| Asian | 13.51% | 10.11% | 4.75% |
| American Indian | 0.06% | 0.30% | 0.95% |
| Other | 2.99% | 5.26% | 9.28% |
| Hispanic | 0.24% | 3.95% | 16.35% |
| Non-Hispanic | 99.76% | 96.05% | 83.65% |
| FAMILY | | | |
| Married, w/children | 27.45% | 33.09% | 30.42% |
| Married, no children | 52.57% | 47.70% | 42.46% |
| Single, w/children | 8.54% | 7.78% | 14.39% |
| Single, no children | 11.44% | 11.43% | 12.73% |
| Divorced | 11.46% | 9.76% | 10.62% |
| Separated | 2.92% | 2.33% | 4.97% |
| Widowed | 8.03% | 5.90% | 6.14% |
| Now Married | 47.18% | 53.82% | 46.32% |
| Never Married | 30.42% | 28.18% | 31.95% |
