| | Bloomer, WI | Altoona, WI | United States |
| Population | 3,654 | 8,244 | 329,725,481 |
| Female Population | 56.9% | 44.9% | 50.5% |
| Male Population | 43.1% | 55.1% | 49.5% |
| Median Age | 34.2 | 37.1 | 38.4 |
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| Population - 2010 | 3,546 | 6,720 | 309,327,143 |
| Population - 2000 | 3,347 | 6,698 | 285,036,114 |
| Population - 1990 | 3,085 | 5,889 | 251,960,433 |
| Pop. 2000 to Now | 4.8% | 20.4% | 15.6% |
| Pop. 1990 to Now | 13.7% | 36.9% | 30.8% |
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| Population Density | 1,254.8 | 1,758.5 | 93.4 |
| Land Area | 2.9 | 4.7 | 3,531,905.4 |
| Water Area | 0.2 | 0.3 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Bloomer, WI | Altoona, WI | United States |
| Age 0 to 4 | 7.0% | 7.2% | 5.9% |
| Age 5 to 9 | 8.0% | 6.4% | 6.1% |
| Age 10 to 14 | 5.4% | 7.5% | 6.6% |
| Age 15 to 17 | 8.0% | 4.3% | 3.9% |
| Age 18 to 20 | 1.5% | 2.2% | 4.0% |
| Age 21 to 24 | 3.4% | 5.8% | 5.2% |
| Age 25 to 34 | 18.9% | 14.0% | 13.8% |
| Age 35 to 44 | 10.9% | 14.4% | 12.9% |
| Age 45 to 54 | 8.5% | 9.9% | 12.6% |
| Age 55 to 59 | 9.2% | 5.3% | 6.7% |
| Age 60 to 64 | 5.0% | 7.6% | 6.3% |
| Age 65 to 74 | 5.8% | 8.5% | 9.6% |
| Age 75 to 84 | 6.2% | 4.2% | 4.5% |
| Age 85 and over | 2.3% | 2.9% | 1.9% |
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| Race | | | |
| | Bloomer, WI | Altoona, WI | United States |
| White | 98.1% | 87.7% | 59.4% |
| Black | 0.0% | 1.0% | 12.2% |
| Asian | 0.4% | 1.3% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 0.4% | 6.3% | 3.2% |
| Hispanic | 1.1% | 3.6% | 18.4% |
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| Marriage & Family | | | |
| | Bloomer, WI | Altoona, WI | United States |
| Married Population | 46.4% | 51.6% | 49.8% |
| Currently Married | 46.1% | 51.0% | 48.0% |
| Married but Separated | 0.3% | 0.6% | 1.8% |
| Single Population | 53.6% | 48.4% | 50.2% |
| Never Married | 30.6% | 32.4% | 33.8% |
| Divorced | 16.5% | 11.6% | 10.8% |
| Widowed | 6.5% | 4.4% | 5.6% |
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| Household Size | 2.44 | 2.39 | 2.60 |
| Households | 1,471 | 3,448 | 124,010,992 |
| Family Households | 835 | 1,894 | 80,755,759 |
| Married couple, w/children | 37.8% | 33.4% | 30.5% |
| Married couple, no children | 39.0% | 47.9% | 42.9% |
| Non Family Households | 636 | 1,554 | 43,255,233 |
| Single householder, w/children | 18.2% | 13.8% | 15.8% |
| Single householder, no children | 4.9% | 4.9% | 10.8% |