| | Elkhorn, WI | Whitewater, WI | United States |
| Population | 10,267 | 14,369 | 329,725,481 |
| Female Population | 52.9% | 48.1% | 50.5% |
| Male Population | 47.1% | 51.9% | 49.5% |
| Median Age | 38.7 | 21.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 10,061 | 14,384 | 309,327,143 |
| Population - 2000 | 7,305 | 13,437 | 285,036,114 |
| Population - 1990 | 5,337 | 12,636 | 251,960,433 |
| Pop. 2000 to Now | 37.2% | 11.6% | 15.6% |
| Pop. 1990 to Now | 87.8% | 18.7% | 30.8% |
| space4 | | | |
| Population Density | 1,277.3 | 1,624.7 | 93.4 |
| Land Area | 8.0 | 8.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Elkhorn, WI | Whitewater, WI | United States |
| Age 0 to 4 | 4.2% | 3.7% | 5.9% |
| Age 5 to 9 | 5.4% | 3.1% | 6.1% |
| Age 10 to 14 | 8.6% | 3.2% | 6.6% |
| Age 15 to 17 | 4.2% | 1.9% | 3.9% |
| Age 18 to 20 | 3.1% | 30.6% | 4.0% |
| Age 21 to 24 | 6.1% | 25.8% | 5.2% |
| Age 25 to 34 | 13.5% | 8.8% | 13.8% |
| Age 35 to 44 | 14.9% | 4.6% | 12.9% |
| Age 45 to 54 | 11.3% | 6.0% | 12.6% |
| Age 55 to 59 | 9.3% | 1.5% | 6.7% |
| Age 60 to 64 | 4.1% | 2.3% | 6.3% |
| Age 65 to 74 | 9.3% | 2.7% | 9.6% |
| Age 75 to 84 | 3.5% | 4.0% | 4.5% |
| Age 85 and over | 2.5% | 1.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Elkhorn, WI | Whitewater, WI | United States |
| White | 81.8% | 79.5% | 59.4% |
| Black | 1.0% | 2.9% | 12.2% |
| Asian | 0.3% | 1.9% | 5.6% |
| Native American | 0.0% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.3% | 0.2% |
| Other | 0.0% | 0.4% | 0.4% |
| Two or More Races | 1.6% | 4.2% | 3.2% |
| Hispanic | 15.3% | 10.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Elkhorn, WI | Whitewater, WI | United States |
| Married Population | 41.3% | 18.9% | 49.8% |
| Currently Married | 40.5% | 18.0% | 48.0% |
| Married but Separated | 0.8% | 0.9% | 1.8% |
| Single Population | 58.7% | 81.1% | 50.2% |
| Never Married | 38.0% | 73.1% | 33.8% |
| Divorced | 13.3% | 5.5% | 10.8% |
| Widowed | 7.3% | 2.4% | 5.6% |
| space5 | | | |
| Household Size | 2.42 | 2.55 | 2.60 |
| Households | 4,138 | 4,226 | 124,010,992 |
| Family Households | 2,377 | 1,729 | 80,755,759 |
| Married couple, w/children | 26.8% | 35.3% | 30.5% |
| Married couple, no children | 38.7% | 28.7% | 42.9% |
| Non Family Households | 1,761 | 2,497 | 43,255,233 |
| Single householder, w/children | 20.3% | 14.6% | 15.8% |
| Single householder, no children | 14.2% | 21.3% | 10.8% |