| | Loves Park, IL | Surprise, AZ | United States |
| Population | 23,223 | 141,875 | 329,725,481 |
| Female Population | 52.9% | 52.3% | 50.5% |
| Male Population | 47.1% | 47.7% | 49.5% |
| Median Age | 39 | 41.7 | 38.4 |
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| Population - 2010 | 23,983 | 117,604 | 309,327,143 |
| Population - 2000 | 20,044 | 30,848 | 285,036,114 |
| Population - 1990 | 15,462 | 7,122 | 251,960,433 |
| Pop. 2000 to Now | 16.7% | 379.7% | 15.6% |
| Pop. 1990 to Now | 51.2% | 1,977.6% | 30.8% |
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| Population Density | 1,413.9 | 1,311.6 | 93.4 |
| Land Area | 16.4 | 108.2 | 3,531,905.4 |
| Water Area | 0.4 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Loves Park, IL | Surprise, AZ | United States |
| Age 0 to 4 | 7.3% | 5.3% | 5.9% |
| Age 5 to 9 | 3.7% | 6.7% | 6.1% |
| Age 10 to 14 | 6.0% | 7.8% | 6.6% |
| Age 15 to 17 | 2.8% | 4.7% | 3.9% |
| Age 18 to 20 | 3.8% | 3.3% | 4.0% |
| Age 21 to 24 | 6.1% | 3.8% | 5.2% |
| Age 25 to 34 | 15.3% | 10.3% | 13.8% |
| Age 35 to 44 | 10.3% | 12.4% | 12.9% |
| Age 45 to 54 | 10.7% | 12.9% | 12.6% |
| Age 55 to 59 | 8.7% | 4.9% | 6.7% |
| Age 60 to 64 | 6.5% | 5.1% | 6.3% |
| Age 65 to 74 | 12.5% | 11.9% | 9.6% |
| Age 75 to 84 | 4.3% | 8.4% | 4.5% |
| Age 85 and over | 1.9% | 2.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Loves Park, IL | Surprise, AZ | United States |
| White | 75.5% | 67.8% | 59.4% |
| Black | 5.7% | 5.0% | 12.2% |
| Asian | 4.0% | 2.3% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.4% | 0.5% | 0.4% |
| Two or More Races | 4.6% | 3.2% | 3.2% |
| Hispanic | 9.8% | 20.7% | 18.4% |
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| Marriage & Family | | | |
| | Loves Park, IL | Surprise, AZ | United States |
| Married Population | 47.6% | 59.5% | 49.8% |
| Currently Married | 45.7% | 58.5% | 48.0% |
| Married but Separated | 1.9% | 1.0% | 1.8% |
| Single Population | 52.4% | 40.5% | 50.2% |
| Never Married | 33.8% | 25.1% | 33.8% |
| Divorced | 12.4% | 9.9% | 10.8% |
| Widowed | 6.1% | 5.4% | 5.6% |
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| Household Size | 2.35 | 2.71 | 2.60 |
| Households | 9,835 | 52,205 | 124,010,992 |
| Family Households | 6,157 | 39,491 | 80,755,759 |
| Married couple, w/children | 24.3% | 31.6% | 30.5% |
| Married couple, no children | 44.1% | 49.1% | 42.9% |
| Non Family Households | 3,678 | 12,714 | 43,255,233 |
| Single householder, w/children | 19.0% | 12.0% | 15.8% |
| Single householder, no children | 12.6% | 7.2% | 10.8% |