| | Ashville, OH | Circleville, OH | United States |
| Population | 4,505 | 13,933 | 329,725,481 |
| Female Population | 53.3% | 50.7% | 50.5% |
| Male Population | 46.7% | 49.3% | 49.5% |
| Median Age | 33.7 | 36.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,044 | 13,495 | 309,327,143 |
| Population - 2000 | 3,174 | 13,485 | 285,036,114 |
| Population - 1990 | 2,254 | 11,666 | 251,960,433 |
| Pop. 2000 to Now | 40.7% | 5.0% | 15.6% |
| Pop. 1990 to Now | 98.1% | 21.4% | 30.8% |
| space4 | | | |
| Population Density | 2,021.1 | 1,938.1 | 93.4 |
| Land Area | 2.2 | 7.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Ashville, OH | Circleville, OH | United States |
| Age 0 to 4 | 3.2% | 7.8% | 5.9% |
| Age 5 to 9 | 10.7% | 5.0% | 6.1% |
| Age 10 to 14 | 4.2% | 4.5% | 6.6% |
| Age 15 to 17 | 7.5% | 3.8% | 3.9% |
| Age 18 to 20 | 6.6% | 3.8% | 4.0% |
| Age 21 to 24 | 10.1% | 6.4% | 5.2% |
| Age 25 to 34 | 10.1% | 16.1% | 13.8% |
| Age 35 to 44 | 11.7% | 11.4% | 12.9% |
| Age 45 to 54 | 17.5% | 10.1% | 12.6% |
| Age 55 to 59 | 4.0% | 5.6% | 6.7% |
| Age 60 to 64 | 3.5% | 6.5% | 6.3% |
| Age 65 to 74 | 4.5% | 10.9% | 9.6% |
| Age 75 to 84 | 5.8% | 5.0% | 4.5% |
| Age 85 and over | 0.6% | 3.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Ashville, OH | Circleville, OH | United States |
| White | 94.5% | 93.8% | 59.4% |
| Black | 0.4% | 2.7% | 12.2% |
| Asian | 0.0% | 0.2% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.6% | 2.6% | 3.2% |
| Hispanic | 3.5% | 0.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Ashville, OH | Circleville, OH | United States |
| Married Population | 45.6% | 42.4% | 49.8% |
| Currently Married | 44.7% | 39.3% | 48.0% |
| Married but Separated | 0.9% | 3.0% | 1.8% |
| Single Population | 54.4% | 57.6% | 50.2% |
| Never Married | 38.2% | 34.1% | 33.8% |
| Divorced | 11.1% | 14.7% | 10.8% |
| Widowed | 5.1% | 8.8% | 5.6% |
| space5 | | | |
| Household Size | 2.61 | 2.35 | 2.60 |
| Households | 1,728 | 5,594 | 124,010,992 |
| Family Households | 1,155 | 3,341 | 80,755,759 |
| Married couple, w/children | 28.1% | 24.2% | 30.5% |
| Married couple, no children | 37.7% | 39.2% | 42.9% |
| Non Family Households | 573 | 2,253 | 43,255,233 |
| Single householder, w/children | 24.6% | 22.1% | 15.8% |
| Single householder, no children | 9.6% | 14.5% | 10.8% |