| | Thorp, WI | Altoona, WI | United States |
| Population | 1,706 | 8,244 | 329,725,481 |
| Female Population | 51.1% | 44.9% | 50.5% |
| Male Population | 49.0% | 55.1% | 49.5% |
| Median Age | 40.5 | 37.1 | 38.4 |
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| Population - 2010 | 1,622 | 6,720 | 309,327,143 |
| Population - 2000 | 1,536 | 6,698 | 285,036,114 |
| Population - 1990 | 1,657 | 5,889 | 251,960,433 |
| Pop. 2000 to Now | 4.4% | 20.4% | 15.6% |
| Pop. 1990 to Now | -3.2% | 36.9% | 30.8% |
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| Population Density | 1,162.9 | 1,758.5 | 93.4 |
| Land Area | 1.5 | 4.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.3 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Thorp, WI | Altoona, WI | United States |
| Age 0 to 4 | 4.6% | 7.2% | 5.9% |
| Age 5 to 9 | 5.7% | 6.4% | 6.1% |
| Age 10 to 14 | 6.3% | 7.5% | 6.6% |
| Age 15 to 17 | 8.0% | 4.3% | 3.9% |
| Age 18 to 20 | 3.7% | 2.2% | 4.0% |
| Age 21 to 24 | 3.0% | 5.8% | 5.2% |
| Age 25 to 34 | 12.4% | 14.0% | 13.8% |
| Age 35 to 44 | 11.9% | 14.4% | 12.9% |
| Age 45 to 54 | 10.7% | 9.9% | 12.6% |
| Age 55 to 59 | 4.2% | 5.3% | 6.7% |
| Age 60 to 64 | 5.3% | 7.6% | 6.3% |
| Age 65 to 74 | 13.2% | 8.5% | 9.6% |
| Age 75 to 84 | 6.0% | 4.2% | 4.5% |
| Age 85 and over | 4.7% | 2.9% | 1.9% |
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| Race | | | |
| | Thorp, WI | Altoona, WI | United States |
| White | 92.8% | 87.7% | 59.4% |
| Black | 0.0% | 1.0% | 12.2% |
| Asian | 1.4% | 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 | 1.2% | 6.3% | 3.2% |
| Hispanic | 4.5% | 3.6% | 18.4% |
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| Marriage & Family | | | |
| | Thorp, WI | Altoona, WI | United States |
| Married Population | 54.0% | 51.6% | 49.8% |
| Currently Married | 51.3% | 51.0% | 48.0% |
| Married but Separated | 2.7% | 0.6% | 1.8% |
| Single Population | 46.0% | 48.4% | 50.2% |
| Never Married | 28.7% | 32.4% | 33.8% |
| Divorced | 11.5% | 11.6% | 10.8% |
| Widowed | 5.8% | 4.4% | 5.6% |
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| Household Size | 2.37 | 2.39 | 2.60 |
| Households | 689 | 3,448 | 124,010,992 |
| Family Households | 482 | 1,894 | 80,755,759 |
| Married couple, w/children | 35.9% | 33.4% | 30.5% |
| Married couple, no children | 35.1% | 47.9% | 42.9% |
| Non Family Households | 207 | 1,554 | 43,255,233 |
| Single householder, w/children | 21.0% | 13.8% | 15.8% |
| Single householder, no children | 8.1% | 4.9% | 10.8% |