| | Montrose, MN | River Falls, WI | United States |
| Population | 3,703 | 16,058 | 329,725,481 |
| Female Population | 49.9% | 53.2% | 50.5% |
| Male Population | 50.2% | 46.8% | 49.5% |
| Median Age | 34.4 | 26.8 | 38.4 |
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| Population - 2010 | 3,120 | 15,041 | 309,327,143 |
| Population - 2000 | 1,143 | 12,560 | 285,036,114 |
| Population - 1990 | 1,008 | 10,610 | 251,960,433 |
| Pop. 2000 to Now | 218.3% | 29.8% | 15.6% |
| Pop. 1990 to Now | 260.9% | 53.7% | 30.8% |
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| Population Density | 1,219.7 | 2,300.9 | 93.4 |
| Land Area | 3.0 | 7.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Montrose, MN | River Falls, WI | United States |
| Age 0 to 4 | 9.2% | 3.6% | 5.9% |
| Age 5 to 9 | 9.9% | 4.6% | 6.1% |
| Age 10 to 14 | 6.6% | 6.5% | 6.6% |
| Age 15 to 17 | 5.4% | 2.2% | 3.9% |
| Age 18 to 20 | 3.8% | 15.9% | 4.0% |
| Age 21 to 24 | 2.9% | 15.5% | 5.2% |
| Age 25 to 34 | 12.9% | 12.3% | 13.8% |
| Age 35 to 44 | 19.4% | 10.9% | 12.9% |
| Age 45 to 54 | 9.4% | 8.8% | 12.6% |
| Age 55 to 59 | 5.9% | 4.1% | 6.7% |
| Age 60 to 64 | 5.6% | 4.6% | 6.3% |
| Age 65 to 74 | 5.2% | 6.9% | 9.6% |
| Age 75 to 84 | 2.5% | 2.6% | 4.5% |
| Age 85 and over | 1.1% | 1.5% | 1.9% |
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| Race | | | |
| | Montrose, MN | River Falls, WI | United States |
| White | 89.4% | 90.9% | 59.4% |
| Black | 2.6% | 1.2% | 12.2% |
| Asian | 0.5% | 2.2% | 5.6% |
| Native American | 1.5% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.2% | 2.5% | 3.2% |
| Hispanic | 2.8% | 2.9% | 18.4% |
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| Marriage & Family | | | |
| | Montrose, MN | River Falls, WI | United States |
| Married Population | 54.8% | 35.2% | 49.8% |
| Currently Married | 54.7% | 34.9% | 48.0% |
| Married but Separated | 0.1% | 0.3% | 1.8% |
| Single Population | 45.2% | 64.8% | 50.2% |
| Never Married | 29.3% | 53.2% | 33.8% |
| Divorced | 13.1% | 8.3% | 10.8% |
| Widowed | 2.8% | 3.3% | 5.6% |
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| Household Size | 2.75 | 2.45 | 2.60 |
| Households | 1,345 | 5,537 | 124,010,992 |
| Family Households | 967 | 3,005 | 80,755,759 |
| Married couple, w/children | 48.0% | 34.1% | 30.5% |
| Married couple, no children | 30.0% | 42.7% | 42.9% |
| Non Family Households | 378 | 2,532 | 43,255,233 |
| Single householder, w/children | 18.4% | 13.3% | 15.8% |
| Single householder, no children | 3.6% | 9.9% | 10.8% |