| | Edgerton, WI | Edgemont, SD | United States |
| Population | 5,825 | 871 | 329,725,481 |
| Female Population | 49.5% | 53.0% | 50.5% |
| Male Population | 50.5% | 47.0% | 49.5% |
| Median Age | 39.4 | 43.7 | 38.4 |
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| Population - 2010 | 5,416 | 776 | 309,327,143 |
| Population - 2000 | 4,933 | 867 | 285,036,114 |
| Population - 1990 | 4,254 | 906 | 251,960,433 |
| Pop. 2000 to Now | 13.4% | -17.2% | 15.6% |
| Pop. 1990 to Now | 31.5% | -20.8% | 30.8% |
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| Population Density | 1,400.6 | 911.1 | 93.4 |
| Land Area | 4.2 | 1.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Edgerton, WI | Edgemont, SD | United States |
| Age 0 to 4 | 5.7% | 7.0% | 5.9% |
| Age 5 to 9 | 2.7% | 6.8% | 6.1% |
| Age 10 to 14 | 9.1% | 5.9% | 6.6% |
| Age 15 to 17 | 6.8% | 2.8% | 3.9% |
| Age 18 to 20 | 3.4% | 2.1% | 4.0% |
| Age 21 to 24 | 6.0% | 1.4% | 5.2% |
| Age 25 to 34 | 12.2% | 11.3% | 13.8% |
| Age 35 to 44 | 13.4% | 14.2% | 12.9% |
| Age 45 to 54 | 14.4% | 5.7% | 12.6% |
| Age 55 to 59 | 4.5% | 8.6% | 6.7% |
| Age 60 to 64 | 4.7% | 4.9% | 6.3% |
| Age 65 to 74 | 11.0% | 20.8% | 9.6% |
| Age 75 to 84 | 4.8% | 7.3% | 4.5% |
| Age 85 and over | 1.3% | 1.3% | 1.9% |
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| Race | | | |
| | Edgerton, WI | Edgemont, SD | United States |
| White | 87.6% | 85.2% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 11.8% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.2% | 0.4% |
| Two or More Races | 1.8% | 2.6% | 3.2% |
| Hispanic | 10.5% | 0.1% | 18.4% |
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| Marriage & Family | | | |
| | Edgerton, WI | Edgemont, SD | United States |
| Married Population | 50.1% | 37.9% | 49.8% |
| Currently Married | 49.8% | 36.9% | 48.0% |
| Married but Separated | 0.3% | 1.0% | 1.8% |
| Single Population | 49.9% | 62.1% | 50.2% |
| Never Married | 28.2% | 37.6% | 33.8% |
| Divorced | 16.1% | 13.3% | 10.8% |
| Widowed | 5.6% | 11.3% | 5.6% |
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| Household Size | 2.48 | 2.69 | 2.60 |
| Households | 2,326 | 324 | 124,010,992 |
| Family Households | 1,413 | 180 | 80,755,759 |
| Married couple, w/children | 36.4% | 12.2% | 30.5% |
| Married couple, no children | 40.4% | 47.2% | 42.9% |
| Non Family Households | 913 | 144 | 43,255,233 |
| Single householder, w/children | 21.4% | 18.9% | 15.8% |
| Single householder, no children | 1.7% | 21.7% | 10.8% |