| | Ellsworth, KS | Aurora, KS | United States |
| Population | 3,012 | 71 | 329,725,481 |
| Female Population | 38.8% | 46.5% | 50.5% |
| Male Population | 61.3% | 53.5% | 49.5% |
| Median Age | 37.1 | 29.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,127 | 60 | 309,327,143 |
| Population - 2000 | 2,965 | 79 | 285,036,114 |
| Population - 1990 | 2,294 | 101 | 251,960,433 |
| Pop. 2000 to Now | -1.0% | -30.4% | 15.6% |
| Pop. 1990 to Now | 27.9% | -45.5% | 30.8% |
| space4 | | | |
| Population Density | 1,266.1 | 703.0 | 93.4 |
| Land Area | 2.4 | 0.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Ellsworth, KS | Aurora, KS | United States |
| Age 0 to 4 | 4.9% | 19.7% | 5.9% |
| Age 5 to 9 | 5.4% | 0.0% | 6.1% |
| Age 10 to 14 | 5.1% | 8.5% | 6.6% |
| Age 15 to 17 | 1.9% | 0.0% | 3.9% |
| Age 18 to 20 | 3.1% | 0.0% | 4.0% |
| Age 21 to 24 | 7.8% | 0.0% | 5.2% |
| Age 25 to 34 | 17.2% | 26.8% | 13.8% |
| Age 35 to 44 | 14.4% | 26.8% | 12.9% |
| Age 45 to 54 | 11.0% | 1.4% | 12.6% |
| Age 55 to 59 | 8.2% | 0.0% | 6.7% |
| Age 60 to 64 | 4.7% | 4.2% | 6.3% |
| Age 65 to 74 | 7.4% | 11.3% | 9.6% |
| Age 75 to 84 | 6.8% | 1.4% | 4.5% |
| Age 85 and over | 2.2% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Ellsworth, KS | Aurora, KS | United States |
| White | 81.6% | 100.0% | 59.4% |
| Black | 5.6% | 0.0% | 12.2% |
| Asian | 1.6% | 0.0% | 5.6% |
| Native American | 1.5% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.1% | 0.0% | 3.2% |
| Hispanic | 6.5% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Ellsworth, KS | Aurora, KS | United States |
| Married Population | 49.3% | 49.0% | 49.8% |
| Currently Married | 45.4% | 49.0% | 48.0% |
| Married but Separated | 3.9% | 0.0% | 1.8% |
| Single Population | 50.7% | 51.0% | 50.2% |
| Never Married | 28.4% | 23.5% | 33.8% |
| Divorced | 13.1% | 21.6% | 10.8% |
| Widowed | 9.2% | 5.9% | 5.6% |
| space5 | | | |
| Household Size | 2.27 | 2.29 | 2.60 |
| Households | 971 | 31 | 124,010,992 |
| Family Households | 620 | 13 | 80,755,759 |
| Married couple, w/children | 25.3% | 61.5% | 30.5% |
| Married couple, no children | 58.1% | 38.5% | 42.9% |
| Non Family Households | 351 | 18 | 43,255,233 |
| Single householder, w/children | 9.4% | 0.0% | 15.8% |
| Single householder, no children | 7.3% | 0.0% | 10.8% |