| | Lisle, IL | Florence, AZ | United States |
| Population | 23,982 | 25,356 | 329,725,481 |
| Female Population | 47.5% | 24.6% | 50.5% |
| Male Population | 52.5% | 75.4% | 49.5% |
| Median Age | 36.7 | 41.5 | 38.4 |
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| Population - 2010 | 22,627 | 26,156 | 309,327,143 |
| Population - 2000 | 21,182 | 17,054 | 285,036,114 |
| Population - 1990 | 19,512 | 7,510 | 251,960,433 |
| Pop. 2000 to Now | 9.3% | 64.5% | 15.6% |
| Pop. 1990 to Now | 18.7% | 273.5% | 30.8% |
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| Population Density | 3,408.0 | 404.9 | 93.4 |
| Land Area | 7.0 | 62.6 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Lisle, IL | Florence, AZ | United States |
| Age 0 to 4 | 6.6% | 1.8% | 5.9% |
| Age 5 to 9 | 6.9% | 2.0% | 6.1% |
| Age 10 to 14 | 6.1% | 3.4% | 6.6% |
| Age 15 to 17 | 2.0% | 0.9% | 3.9% |
| Age 18 to 20 | 5.0% | 1.9% | 4.0% |
| Age 21 to 24 | 5.6% | 4.5% | 5.2% |
| Age 25 to 34 | 14.9% | 21.6% | 13.8% |
| Age 35 to 44 | 14.7% | 19.6% | 12.9% |
| Age 45 to 54 | 11.1% | 10.8% | 12.6% |
| Age 55 to 59 | 7.5% | 7.4% | 6.7% |
| Age 60 to 64 | 5.2% | 7.7% | 6.3% |
| Age 65 to 74 | 7.8% | 12.4% | 9.6% |
| Age 75 to 84 | 4.1% | 4.7% | 4.5% |
| Age 85 and over | 2.6% | 1.4% | 1.9% |
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| Race | | | |
| | Lisle, IL | Florence, AZ | United States |
| White | 69.2% | 47.7% | 59.4% |
| Black | 4.2% | 9.4% | 12.2% |
| Asian | 17.7% | 0.5% | 5.6% |
| Native American | 0.0% | 3.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.6% | 0.2% |
| Other | 0.1% | 0.1% | 0.4% |
| Two or More Races | 2.9% | 1.6% | 3.2% |
| Hispanic | 5.9% | 37.2% | 18.4% |
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| Marriage & Family | | | |
| | Lisle, IL | Florence, AZ | United States |
| Married Population | 54.0% | 34.8% | 49.8% |
| Currently Married | 53.2% | 32.3% | 48.0% |
| Married but Separated | 0.8% | 2.5% | 1.8% |
| Single Population | 46.0% | 65.2% | 50.2% |
| Never Married | 33.0% | 42.5% | 33.8% |
| Divorced | 8.1% | 18.3% | 10.8% |
| Widowed | 4.8% | 4.4% | 5.6% |
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| Household Size | 2.29 | 2.40 | 2.60 |
| Households | 10,077 | 5,053 | 124,010,992 |
| Family Households | 5,671 | 3,307 | 80,755,759 |
| Married couple, w/children | 37.3% | 18.2% | 30.5% |
| Married couple, no children | 47.8% | 60.9% | 42.9% |
| Non Family Households | 4,406 | 1,746 | 43,255,233 |
| Single householder, w/children | 8.8% | 12.5% | 15.8% |
| Single householder, no children | 6.0% | 8.4% | 10.8% |