| | St. Stephen, MN | Milaca, MN | United States |
| Population | 817 | 3,017 | 329,725,481 |
| Female Population | 44.9% | 53.6% | 50.5% |
| Male Population | 55.1% | 46.4% | 49.5% |
| Median Age | 37.5 | 43.3 | 38.4 |
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| Population - 2010 | 857 | 2,955 | 309,327,143 |
| Population - 2000 | 860 | 2,580 | 285,036,114 |
| Population - 1990 | 607 | 2,182 | 251,960,433 |
| Pop. 2000 to Now | 0.8% | 12.4% | 15.6% |
| Pop. 1990 to Now | 42.8% | 32.9% | 30.8% |
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| Population Density | 219.3 | 914.2 | 93.4 |
| Land Area | 3.7 | 3.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.2 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | St. Stephen, MN | Milaca, MN | United States |
| Age 0 to 4 | 6.0% | 5.1% | 5.9% |
| Age 5 to 9 | 4.4% | 6.2% | 6.1% |
| Age 10 to 14 | 6.6% | 4.2% | 6.6% |
| Age 15 to 17 | 3.2% | 2.9% | 3.9% |
| Age 18 to 20 | 4.9% | 4.3% | 4.0% |
| Age 21 to 24 | 6.6% | 3.8% | 5.2% |
| Age 25 to 34 | 14.3% | 11.2% | 13.8% |
| Age 35 to 44 | 14.4% | 14.6% | 12.9% |
| Age 45 to 54 | 14.6% | 9.8% | 12.6% |
| Age 55 to 59 | 6.6% | 4.8% | 6.7% |
| Age 60 to 64 | 5.3% | 11.6% | 6.3% |
| Age 65 to 74 | 5.8% | 10.2% | 9.6% |
| Age 75 to 84 | 5.4% | 6.7% | 4.5% |
| Age 85 and over | 2.0% | 4.7% | 1.9% |
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| Race | | | |
| | St. Stephen, MN | Milaca, MN | United States |
| White | 96.0% | 92.0% | 59.4% |
| Black | 0.0% | 1.1% | 12.2% |
| Asian | 0.2% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.5% | 0.2% |
| Other | 0.2% | 0.0% | 0.4% |
| Two or More Races | 1.2% | 4.2% | 3.2% |
| Hispanic | 2.3% | 2.2% | 18.4% |
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| Marriage & Family | | | |
| | St. Stephen, MN | Milaca, MN | United States |
| Married Population | 53.1% | 44.0% | 49.8% |
| Currently Married | 51.8% | 43.8% | 48.0% |
| Married but Separated | 1.3% | 0.3% | 1.8% |
| Single Population | 46.9% | 56.0% | 50.2% |
| Never Married | 34.7% | 29.1% | 33.8% |
| Divorced | 5.9% | 16.8% | 10.8% |
| Widowed | 6.3% | 10.1% | 5.6% |
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| Household Size | 2.42 | 1.91 | 2.60 |
| Households | 337 | 1,486 | 124,010,992 |
| Family Households | 226 | 721 | 80,755,759 |
| Married couple, w/children | 30.1% | 16.1% | 30.5% |
| Married couple, no children | 46.9% | 52.4% | 42.9% |
| Non Family Households | 111 | 765 | 43,255,233 |
| Single householder, w/children | 19.9% | 24.7% | 15.8% |
| Single householder, no children | 3.1% | 6.8% | 10.8% |