| | Shakopee, MN | Willowbrook, IL | United States |
| Population | 43,396 | 9,178 | 329,725,481 |
| Female Population | 51.6% | 55.4% | 50.5% |
| Male Population | 48.4% | 44.6% | 49.5% |
| Median Age | 34.7 | 48.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 37,290 | 8,685 | 309,327,143 |
| Population - 2000 | 20,568 | 8,967 | 285,036,114 |
| Population - 1990 | 11,739 | 8,598 | 251,960,433 |
| Pop. 2000 to Now | 109.2% | -5.1% | 15.6% |
| Pop. 1990 to Now | 266.5% | -1.1% | 30.8% |
| space4 | | | |
| Population Density | 1,543.7 | 3,410.6 | 93.4 |
| Land Area | 28.1 | 2.7 | 3,531,905.4 |
| Water Area | 1.3 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Shakopee, MN | Willowbrook, IL | United States |
| Age 0 to 4 | 7.2% | 5.9% | 5.9% |
| Age 5 to 9 | 7.6% | 4.2% | 6.1% |
| Age 10 to 14 | 7.2% | 3.4% | 6.6% |
| Age 15 to 17 | 4.9% | 3.2% | 3.9% |
| Age 18 to 20 | 3.8% | 3.1% | 4.0% |
| Age 21 to 24 | 5.8% | 2.9% | 5.2% |
| Age 25 to 34 | 13.9% | 12.4% | 13.8% |
| Age 35 to 44 | 16.3% | 11.2% | 12.9% |
| Age 45 to 54 | 14.6% | 12.1% | 12.6% |
| Age 55 to 59 | 4.4% | 8.2% | 6.7% |
| Age 60 to 64 | 4.5% | 8.1% | 6.3% |
| Age 65 to 74 | 6.5% | 11.7% | 9.6% |
| Age 75 to 84 | 2.2% | 8.7% | 4.5% |
| Age 85 and over | 1.0% | 4.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Shakopee, MN | Willowbrook, IL | United States |
| White | 65.6% | 75.6% | 59.4% |
| Black | 8.5% | 3.4% | 12.2% |
| Asian | 11.2% | 13.4% | 5.6% |
| Native American | 0.6% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.4% | 0.1% | 0.4% |
| Two or More Races | 5.9% | 1.0% | 3.2% |
| Hispanic | 8.0% | 6.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Shakopee, MN | Willowbrook, IL | United States |
| Married Population | 50.7% | 57.3% | 49.8% |
| Currently Married | 49.0% | 56.9% | 48.0% |
| Married but Separated | 1.7% | 0.4% | 1.8% |
| Single Population | 49.3% | 42.7% | 50.2% |
| Never Married | 33.3% | 25.9% | 33.8% |
| Divorced | 12.5% | 9.8% | 10.8% |
| Widowed | 3.4% | 6.9% | 5.6% |
| space5 | | | |
| Household Size | 2.82 | 2.21 | 2.60 |
| Households | 15,087 | 4,103 | 124,010,992 |
| Family Households | 10,941 | 2,574 | 80,755,759 |
| Married couple, w/children | 38.8% | 24.3% | 30.5% |
| Married couple, no children | 31.9% | 60.4% | 42.9% |
| Non Family Households | 4,146 | 1,529 | 43,255,233 |
| Single householder, w/children | 19.5% | 9.1% | 15.8% |
| Single householder, no children | 9.7% | 6.3% | 10.8% |