| | Saratoga, WI | Necedah, WI | United States |
| Population | 5,083 | 1,131 | 329,725,481 |
| Female Population | 40.6% | 46.4% | 50.5% |
| Male Population | 59.4% | 53.6% | 49.5% |
| Median Age | 49.8 | 47.3 | 38.4 |
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| Population - 2010 | 5,145 | 908 | 309,327,143 |
| Population - 2000 | 5,383 | 888 | 285,036,114 |
| Population - 1990 | 4,775 | 743 | 251,960,433 |
| Pop. 2000 to Now | -8.5% | 3.9% | 15.6% |
| Pop. 1990 to Now | 3.2% | 24.2% | 30.8% |
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| Population Density | 102.9 | 409.3 | 93.4 |
| Land Area | 49.4 | 2.8 | 3,531,905.4 |
| Water Area | 1.7 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Saratoga, WI | Necedah, WI | United States |
| Age 0 to 4 | 5.0% | 2.6% | 5.9% |
| Age 5 to 9 | 5.1% | 5.7% | 6.1% |
| Age 10 to 14 | 6.2% | 4.8% | 6.6% |
| Age 15 to 17 | 2.6% | 3.6% | 3.9% |
| Age 18 to 20 | 3.4% | 2.6% | 4.0% |
| Age 21 to 24 | 3.2% | 6.4% | 5.2% |
| Age 25 to 34 | 9.6% | 10.6% | 13.8% |
| Age 35 to 44 | 7.5% | 11.8% | 12.9% |
| Age 45 to 54 | 13.4% | 16.5% | 12.6% |
| Age 55 to 59 | 8.9% | 6.7% | 6.7% |
| Age 60 to 64 | 10.1% | 11.9% | 6.3% |
| Age 65 to 74 | 15.7% | 10.3% | 9.6% |
| Age 75 to 84 | 6.8% | 4.0% | 4.5% |
| Age 85 and over | 2.4% | 2.6% | 1.9% |
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| Race | | | |
| | Saratoga, WI | Necedah, WI | United States |
| White | 92.8% | 92.2% | 59.4% |
| Black | 0.4% | 0.4% | 12.2% |
| Asian | 0.0% | 1.2% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.4% | 3.4% | 3.2% |
| Hispanic | 6.3% | 2.5% | 18.4% |
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| Marriage & Family | | | |
| | Saratoga, WI | Necedah, WI | United States |
| Married Population | 57.8% | 45.5% | 49.8% |
| Currently Married | 57.8% | 43.5% | 48.0% |
| Married but Separated | 0.0% | 1.9% | 1.8% |
| Single Population | 42.2% | 54.5% | 50.2% |
| Never Married | 24.8% | 26.2% | 33.8% |
| Divorced | 12.8% | 22.1% | 10.8% |
| Widowed | 4.6% | 6.2% | 5.6% |
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| Household Size | 2.35 | 2.69 | 2.60 |
| Households | 2,164 | 383 | 124,010,992 |
| Family Households | 1,664 | 213 | 80,755,759 |
| Married couple, w/children | 17.1% | 27.2% | 30.5% |
| Married couple, no children | 58.2% | 43.2% | 42.9% |
| Non Family Households | 500 | 170 | 43,255,233 |
| Single householder, w/children | 14.7% | 22.5% | 15.8% |
| Single householder, no children | 9.9% | 7.0% | 10.8% |