| | Valley Springs, SD | Roosevelt, NY | United States |
| Population | 943 | 18,019 | 329,725,481 |
| Female Population | 38.8% | 51.5% | 50.5% |
| Male Population | 61.2% | 48.5% | 49.5% |
| Median Age | 45.2 | 34.3 | 38.4 |
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| Population - 2010 | 761 | 15,046 | 309,327,143 |
| Population - 2000 | 792 | 15,854 | 285,036,114 |
| Population - 1990 | 739 | 15,030 | 251,960,433 |
| Pop. 2000 to Now | -7.5% | 1.2% | 15.6% |
| Pop. 1990 to Now | -0.8% | 6.8% | 30.8% |
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| Population Density | 1,008.6 | 10,180.2 | 93.4 |
| Land Area | 0.9 | 1.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Valley Springs, SD | Roosevelt, NY | United States |
| Age 0 to 4 | 4.1% | 8.0% | 5.9% |
| Age 5 to 9 | 8.4% | 6.5% | 6.1% |
| Age 10 to 14 | 7.1% | 6.1% | 6.6% |
| Age 15 to 17 | 2.9% | 3.4% | 3.9% |
| Age 18 to 20 | 2.1% | 3.8% | 4.0% |
| Age 21 to 24 | 3.2% | 7.6% | 5.2% |
| Age 25 to 34 | 11.3% | 15.3% | 13.8% |
| Age 35 to 44 | 10.4% | 14.9% | 12.9% |
| Age 45 to 54 | 31.8% | 14.2% | 12.6% |
| Age 55 to 59 | 4.0% | 4.9% | 6.7% |
| Age 60 to 64 | 7.1% | 5.0% | 6.3% |
| Age 65 to 74 | 6.3% | 6.6% | 9.6% |
| Age 75 to 84 | 1.3% | 2.7% | 4.5% |
| Age 85 and over | 0.0% | 1.1% | 1.9% |
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| Race | | | |
| | Valley Springs, SD | Roosevelt, NY | United States |
| White | 97.1% | 1.6% | 59.4% |
| Black | 0.1% | 49.5% | 12.2% |
| Asian | 0.3% | 1.7% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.6% | 0.4% |
| Two or More Races | 2.1% | 2.3% | 3.2% |
| Hispanic | 0.3% | 44.2% | 18.4% |
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| Marriage & Family | | | |
| | Valley Springs, SD | Roosevelt, NY | United States |
| Married Population | 39.7% | 41.4% | 49.8% |
| Currently Married | 38.9% | 39.1% | 48.0% |
| Married but Separated | 0.8% | 2.3% | 1.8% |
| Single Population | 60.3% | 58.6% | 50.2% |
| Never Married | 17.7% | 45.0% | 33.8% |
| Divorced | 37.3% | 8.0% | 10.8% |
| Widowed | 5.3% | 5.5% | 5.6% |
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| Household Size | 2.81 | 4.17 | 2.60 |
| Households | 336 | 4,292 | 124,010,992 |
| Family Households | 201 | 3,724 | 80,755,759 |
| Married couple, w/children | 33.8% | 34.7% | 30.5% |
| Married couple, no children | 35.8% | 20.7% | 42.9% |
| Non Family Households | 135 | 568 | 43,255,233 |
| Single householder, w/children | 19.4% | 24.4% | 15.8% |
| Single householder, no children | 10.9% | 20.3% | 10.8% |