| | Cohasset, MN | Ball Club, MN | United States |
| Population | 2,697 | 227 | 329,725,481 |
| Female Population | 54.1% | 38.8% | 50.5% |
| Male Population | 45.9% | 61.2% | 49.5% |
| Median Age | 41 | 38 | 38.4 |
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| Population - 2010 | 2,688 | 215 | 309,327,143 |
| Population - 2000 | 2,481 | 286 | 285,036,114 |
| Population - 1990 | 2,121 | 260 | 251,960,433 |
| Pop. 2000 to Now | 10.4% | -14.0% | 15.6% |
| Pop. 1990 to Now | 29.1% | -5.4% | 30.8% |
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| Population Density | 100.3 | 82.1 | 93.4 |
| Land Area | 26.9 | 2.8 | 3,531,905.4 |
| Water Area | 8.4 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Cohasset, MN | Ball Club, MN | United States |
| Age 0 to 4 | 10.6% | 14.5% | 5.9% |
| Age 5 to 9 | 4.3% | 4.8% | 6.1% |
| Age 10 to 14 | 4.9% | 1.3% | 6.6% |
| Age 15 to 17 | 2.4% | 9.7% | 3.9% |
| Age 18 to 20 | 1.9% | 0.0% | 4.0% |
| Age 21 to 24 | 5.7% | 0.0% | 5.2% |
| Age 25 to 34 | 13.0% | 11.5% | 13.8% |
| Age 35 to 44 | 11.1% | 13.7% | 12.9% |
| Age 45 to 54 | 7.5% | 12.3% | 12.6% |
| Age 55 to 59 | 5.9% | 0.0% | 6.7% |
| Age 60 to 64 | 8.7% | 7.5% | 6.3% |
| Age 65 to 74 | 17.6% | 24.7% | 9.6% |
| Age 75 to 84 | 4.3% | 0.0% | 4.5% |
| Age 85 and over | 2.2% | 0.0% | 1.9% |
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| Race | | | |
| | Cohasset, MN | Ball Club, MN | United States |
| White | 89.1% | 21.1% | 59.4% |
| Black | 0.4% | 0.0% | 12.2% |
| Asian | 0.2% | 0.0% | 5.6% |
| Native American | 2.2% | 73.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.7% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 4.1% | 0.0% | 3.2% |
| Hispanic | 2.9% | 5.3% | 18.4% |
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| Marriage & Family | | | |
| | Cohasset, MN | Ball Club, MN | United States |
| Married Population | 62.8% | 30.6% | 49.8% |
| Currently Married | 62.1% | 30.6% | 48.0% |
| Married but Separated | 0.7% | 0.0% | 1.8% |
| Single Population | 37.2% | 69.4% | 50.2% |
| Never Married | 21.2% | 38.3% | 33.8% |
| Divorced | 8.0% | 28.3% | 10.8% |
| Widowed | 8.0% | 2.8% | 5.6% |
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| Household Size | 2.64 | 2.49 | 2.60 |
| Households | 1,019 | 91 | 124,010,992 |
| Family Households | 730 | 72 | 80,755,759 |
| Married couple, w/children | 32.9% | 38.9% | 30.5% |
| Married couple, no children | 54.9% | 0.0% | 42.9% |
| Non Family Households | 289 | 19 | 43,255,233 |
| Single householder, w/children | 5.9% | 61.1% | 15.8% |
| Single householder, no children | 6.3% | 0.0% | 10.8% |