| | Plainview, MN | Cannon Falls, MN | United States |
| Population | 3,460 | 4,198 | 329,725,481 |
| Female Population | 50.5% | 51.2% | 50.5% |
| Male Population | 49.5% | 48.8% | 49.5% |
| Median Age | 35.5 | 40 | 38.4 |
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| Population - 2010 | 3,341 | 4,082 | 309,327,143 |
| Population - 2000 | 3,190 | 3,795 | 285,036,114 |
| Population - 1990 | 2,768 | 3,232 | 251,960,433 |
| Pop. 2000 to Now | 3.2% | 6.0% | 15.6% |
| Pop. 1990 to Now | 18.9% | 24.4% | 30.8% |
| space4 | | | |
| Population Density | 1,615.3 | 940.8 | 93.4 |
| Land Area | 2.1 | 4.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Plainview, MN | Cannon Falls, MN | United States |
| Age 0 to 4 | 10.6% | 6.6% | 5.9% |
| Age 5 to 9 | 6.5% | 5.9% | 6.1% |
| Age 10 to 14 | 9.2% | 6.8% | 6.6% |
| Age 15 to 17 | 3.9% | 2.5% | 3.9% |
| Age 18 to 20 | 2.5% | 2.1% | 4.0% |
| Age 21 to 24 | 2.7% | 3.3% | 5.2% |
| Age 25 to 34 | 13.4% | 12.2% | 13.8% |
| Age 35 to 44 | 15.2% | 14.2% | 12.9% |
| Age 45 to 54 | 8.5% | 10.7% | 12.6% |
| Age 55 to 59 | 5.0% | 8.9% | 6.7% |
| Age 60 to 64 | 7.2% | 8.3% | 6.3% |
| Age 65 to 74 | 5.6% | 8.2% | 9.6% |
| Age 75 to 84 | 7.9% | 5.2% | 4.5% |
| Age 85 and over | 1.6% | 4.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Plainview, MN | Cannon Falls, MN | United States |
| White | 91.0% | 91.8% | 59.4% |
| Black | 0.1% | 0.2% | 12.2% |
| Asian | 0.0% | 0.2% | 5.6% |
| Native American | 0.8% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.0% | 5.1% | 3.2% |
| Hispanic | 7.1% | 2.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Plainview, MN | Cannon Falls, MN | United States |
| Married Population | 63.4% | 51.9% | 49.8% |
| Currently Married | 61.6% | 50.5% | 48.0% |
| Married but Separated | 1.7% | 1.4% | 1.8% |
| Single Population | 36.6% | 48.1% | 50.2% |
| Never Married | 23.7% | 28.0% | 33.8% |
| Divorced | 10.1% | 11.9% | 10.8% |
| Widowed | 2.8% | 8.2% | 5.6% |
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| Household Size | 2.54 | 2.31 | 2.60 |
| Households | 1,336 | 1,775 | 124,010,992 |
| Family Households | 945 | 1,049 | 80,755,759 |
| Married couple, w/children | 37.4% | 32.8% | 30.5% |
| Married couple, no children | 46.6% | 43.7% | 42.9% |
| Non Family Households | 391 | 726 | 43,255,233 |
| Single householder, w/children | 15.2% | 16.3% | 15.8% |
| Single householder, no children | 0.8% | 7.2% | 10.8% |