| | Baldwin, WI | Menomonie, WI | United States |
| Population | 4,214 | 16,721 | 329,725,481 |
| Female Population | 45.9% | 50.4% | 50.5% |
| Male Population | 54.1% | 49.6% | 49.5% |
| Median Age | 35 | 23.9 | 38.4 |
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| Population - 2010 | 3,977 | 16,268 | 309,327,143 |
| Population - 2000 | 2,667 | 14,937 | 285,036,114 |
| Population - 1990 | 2,022 | 13,547 | 251,960,433 |
| Pop. 2000 to Now | 52.9% | 11.1% | 15.6% |
| Pop. 1990 to Now | 101.7% | 22.5% | 30.8% |
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| Population Density | 1,363.8 | 1,222.0 | 93.4 |
| Land Area | 3.1 | 13.7 | 3,531,905.4 |
| Water Area | 0.0 | 1.7 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Baldwin, WI | Menomonie, WI | United States |
| Age 0 to 4 | 7.4% | 2.9% | 5.9% |
| Age 5 to 9 | 15.4% | 4.4% | 6.1% |
| Age 10 to 14 | 5.9% | 2.9% | 6.6% |
| Age 15 to 17 | 1.6% | 1.9% | 3.9% |
| Age 18 to 20 | 2.3% | 21.1% | 4.0% |
| Age 21 to 24 | 6.3% | 18.9% | 5.2% |
| Age 25 to 34 | 11.2% | 10.1% | 13.8% |
| Age 35 to 44 | 22.4% | 8.4% | 12.9% |
| Age 45 to 54 | 6.7% | 8.1% | 12.6% |
| Age 55 to 59 | 5.3% | 4.4% | 6.7% |
| Age 60 to 64 | 6.0% | 3.8% | 6.3% |
| Age 65 to 74 | 3.6% | 7.0% | 9.6% |
| Age 75 to 84 | 4.6% | 3.4% | 4.5% |
| Age 85 and over | 1.3% | 2.7% | 1.9% |
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| Race | | | |
| | Baldwin, WI | Menomonie, WI | United States |
| White | 95.1% | 92.3% | 59.4% |
| Black | 2.0% | 1.1% | 12.2% |
| Asian | 0.6% | 2.2% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 1.1% | 1.9% | 3.2% |
| Hispanic | 1.1% | 2.4% | 18.4% |
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| Marriage & Family | | | |
| | Baldwin, WI | Menomonie, WI | United States |
| Married Population | 64.4% | 25.7% | 49.8% |
| Currently Married | 64.0% | 25.1% | 48.0% |
| Married but Separated | 0.5% | 0.6% | 1.8% |
| Single Population | 35.6% | 74.3% | 50.2% |
| Never Married | 22.5% | 57.3% | 33.8% |
| Divorced | 9.1% | 11.6% | 10.8% |
| Widowed | 3.9% | 5.4% | 5.6% |
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| Household Size | 2.65 | 2.15 | 2.60 |
| Households | 1,571 | 6,110 | 124,010,992 |
| Family Households | 1,145 | 2,457 | 80,755,759 |
| Married couple, w/children | 35.3% | 29.1% | 30.5% |
| Married couple, no children | 41.6% | 42.4% | 42.9% |
| Non Family Households | 426 | 3,653 | 43,255,233 |
| Single householder, w/children | 17.9% | 14.7% | 15.8% |
| Single householder, no children | 5.2% | 13.7% | 10.8% |