| | Cottonwood Shores, TX | Willmar, MN | United States |
| Population | 1,630 | 20,823 | 329,725,481 |
| Female Population | 53.0% | 51.6% | 50.5% |
| Male Population | 47.1% | 48.4% | 49.5% |
| Median Age | 32.1 | 34.2 | 38.4 |
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| Population - 2010 | 1,115 | 19,580 | 309,327,143 |
| Population - 2000 | 877 | 18,351 | 285,036,114 |
| Population - 1990 | 548 | 17,531 | 251,960,433 |
| Pop. 2000 to Now | 49.7% | 8.4% | 15.6% |
| Pop. 1990 to Now | 139.6% | 13.5% | 30.8% |
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| Population Density | 822.8 | 1,490.4 | 93.4 |
| Land Area | 2.0 | 14.0 | 3,531,905.4 |
| Water Area | 0.0 | 1.3 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Cottonwood Shores, TX | Willmar, MN | United States |
| Age 0 to 4 | 10.2% | 7.8% | 5.9% |
| Age 5 to 9 | 6.3% | 7.5% | 6.1% |
| Age 10 to 14 | 8.1% | 7.6% | 6.6% |
| Age 15 to 17 | 2.1% | 3.4% | 3.9% |
| Age 18 to 20 | 10.6% | 4.8% | 4.0% |
| Age 21 to 24 | 1.4% | 5.6% | 5.2% |
| Age 25 to 34 | 16.6% | 14.4% | 13.8% |
| Age 35 to 44 | 9.9% | 11.5% | 12.9% |
| Age 45 to 54 | 9.0% | 9.9% | 12.6% |
| Age 55 to 59 | 13.1% | 5.7% | 6.7% |
| Age 60 to 64 | 4.5% | 5.6% | 6.3% |
| Age 65 to 74 | 4.8% | 9.2% | 9.6% |
| Age 75 to 84 | 2.5% | 3.4% | 4.5% |
| Age 85 and over | 0.9% | 3.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Cottonwood Shores, TX | Willmar, MN | United States |
| White | 55.6% | 61.6% | 59.4% |
| Black | 0.0% | 11.1% | 12.2% |
| Asian | 1.5% | 1.1% | 5.6% |
| Native American | 0.0% | 0.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 0.1% | 2.1% | 3.2% |
| Hispanic | 42.7% | 23.4% | 18.4% |
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| Marriage & Family | | | |
| | Cottonwood Shores, TX | Willmar, MN | United States |
| Married Population | 30.1% | 47.4% | 49.8% |
| Currently Married | 26.8% | 46.5% | 48.0% |
| Married but Separated | 3.3% | 0.9% | 1.8% |
| Single Population | 69.9% | 52.6% | 50.2% |
| Never Married | 44.2% | 37.0% | 33.8% |
| Divorced | 23.0% | 9.3% | 10.8% |
| Widowed | 2.7% | 6.3% | 5.6% |
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| Household Size | 3.91 | 2.56 | 2.60 |
| Households | 417 | 7,775 | 124,010,992 |
| Family Households | 277 | 4,857 | 80,755,759 |
| Married couple, w/children | 30.7% | 27.9% | 30.5% |
| Married couple, no children | 20.6% | 43.0% | 42.9% |
| Non Family Households | 140 | 2,918 | 43,255,233 |
| Single householder, w/children | 36.8% | 20.2% | 15.8% |
| Single householder, no children | 11.9% | 9.0% | 10.8% |