| | Park Rapids, MN | Lake Park, MN | United States |
| Population | 4,026 | 654 | 329,725,481 |
| Female Population | 50.6% | 51.1% | 50.5% |
| Male Population | 49.4% | 48.9% | 49.5% |
| Median Age | 38.5 | 33 | 38.4 |
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| Population - 2010 | 3,853 | 781 | 309,327,143 |
| Population - 2000 | 3,276 | 782 | 285,036,114 |
| Population - 1990 | 2,863 | 638 | 251,960,433 |
| Pop. 2000 to Now | 32.3% | 0.6% | 15.6% |
| Pop. 1990 to Now | 51.4% | 23.4% | 30.8% |
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| Population Density | 578.8 | 673.5 | 93.4 |
| Land Area | 7.0 | 1.0 | 3,531,905.4 |
| Water Area | 0.3 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Park Rapids, MN | Lake Park, MN | United States |
| Age 0 to 4 | 6.6% | 10.4% | 5.9% |
| Age 5 to 9 | 5.4% | 11.9% | 6.1% |
| Age 10 to 14 | 5.0% | 6.1% | 6.6% |
| Age 15 to 17 | 4.2% | 2.8% | 3.9% |
| Age 18 to 20 | 2.7% | 1.5% | 4.0% |
| Age 21 to 24 | 7.2% | 3.1% | 5.2% |
| Age 25 to 34 | 14.1% | 19.1% | 13.8% |
| Age 35 to 44 | 11.9% | 12.4% | 12.9% |
| Age 45 to 54 | 9.6% | 10.1% | 12.6% |
| Age 55 to 59 | 6.2% | 5.4% | 6.7% |
| Age 60 to 64 | 4.8% | 7.2% | 6.3% |
| Age 65 to 74 | 10.1% | 5.5% | 9.6% |
| Age 75 to 84 | 7.1% | 3.1% | 4.5% |
| Age 85 and over | 5.2% | 1.5% | 1.9% |
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| Race | | | |
| | Park Rapids, MN | Lake Park, MN | United States |
| White | 85.0% | 86.7% | 59.4% |
| Black | 1.5% | 0.0% | 12.2% |
| Asian | 0.0% | 3.5% | 5.6% |
| Native American | 2.5% | 2.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.4% | 0.3% | 3.2% |
| Hispanic | 7.6% | 7.3% | 18.4% |
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| Marriage & Family | | | |
| | Park Rapids, MN | Lake Park, MN | United States |
| Married Population | 38.6% | 48.5% | 49.8% |
| Currently Married | 37.7% | 47.4% | 48.0% |
| Married but Separated | 0.8% | 1.1% | 1.8% |
| Single Population | 61.4% | 51.5% | 50.2% |
| Never Married | 33.6% | 27.6% | 33.8% |
| Divorced | 18.7% | 16.9% | 10.8% |
| Widowed | 9.1% | 7.1% | 5.6% |
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| Household Size | 2.26 | 2.61 | 2.60 |
| Households | 1,702 | 251 | 124,010,992 |
| Family Households | 934 | 153 | 80,755,759 |
| Married couple, w/children | 23.2% | 33.3% | 30.5% |
| Married couple, no children | 39.9% | 32.0% | 42.9% |
| Non Family Households | 768 | 98 | 43,255,233 |
| Single householder, w/children | 32.4% | 26.8% | 15.8% |
| Single householder, no children | 4.4% | 7.8% | 10.8% |