| PEOPLE | Morrisville | Joliet | United States |
| Population | 18,576 | 147,433 | 308,035,306 |
| Pop. Density | 2,249 | 2,374 | 87 |
| Pop. Change | 248.68% | 34.99% | 8.07% |
| Median Age | 32.5 | 31.7 | 37.3 |
| Households | 7,641 | 48,019 | 116,716,292 |
| Household Size | 2.47 | 2.98 | 2.58 |
| Male Population | 49.16% | 49.44% | 49.27% |
| Female Population | 50.84% | 50.56% | 50.96% |
| Married Population | 59.43% | 44.68% | 47.02% |
| Single Population | 40.57% | 55.32% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 8.98% | 8.87% | 6.56% |
| Age 5 to 9 | 8.54% | 8.89% | 6.61% |
| Age 10 to 14 | 6.40% | 8.26% | 6.71% |
| Age 15 to 17 | 3.03% | 4.82% | 4.21% |
| Age 18 to 20 | 1.13% | 2.88% | 2.95% |
| Age 21 to 24 | 4.87% | 6.22% | 7.01% |
| Age 25 to 34 | 23.49% | 15.48% | 13.33% |
| Age 35 to 44 | 20.84% | 16.11% | 13.33% |
| Age 45 to 49 | 11.48% | 12.19% | 14.61% |
| Age 50 to 54 | 11.48% | 12.19% | 14.61% |
| Age 55 to 59 | 6.91% | 7.93% | 11.84% |
| Age 60 to 64 | 6.91% | 7.93% | 11.84% |
| Age 65 to 74 | 2.90% | 4.21% | 7.05% |
| Age 75 to 84 | 1.08% | 2.75% | 4.24% |
| Age 85 and over | 0.34% | 1.40% | 1.78% |
| RACE | | | |
| White | 53.99% | 67.48% | 72.41% |
| Black | 12.93% | 15.98% | 12.61% |
| Asian | 27.23% | 1.93% | 4.75% |
| American Indian | 0.40% | 0.32% | 0.95% |
| Other | 5.44% | 14.29% | 9.28% |
| Hispanic | 3.08% | 0.36% | 16.35% |
| Non-Hispanic | 96.92% | 99.64% | 83.65% |
| FAMILY | | | |
| Married, w/children | 47.58% | 42.07% | 30.42% |
| Married, no children | 33.31% | 30.95% | 42.46% |
| Single, w/children | 12.06% | 15.46% | 14.39% |
| Single, no children | 7.05% | 11.52% | 12.73% |
| Divorced | 8.97% | 9.06% | 10.62% |
| Separated | 2.84% | 5.82% | 4.97% |
| Widowed | 2.11% | 6.38% | 6.14% |
| Now Married | 58.83% | 45.15% | 46.32% |
| Never Married | 27.25% | 33.59% | 31.95% |
