| | Versailles, OH | Wilmington, OH | United States |
| Population | 2,939 | 12,523 | 329,725,481 |
| Female Population | 49.6% | 54.2% | 50.5% |
| Male Population | 50.4% | 45.8% | 49.5% |
| Median Age | 43.2 | 35.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,687 | 12,542 | 309,327,143 |
| Population - 2000 | 2,589 | 11,921 | 285,036,114 |
| Population - 1990 | 2,351 | 11,199 | 251,960,433 |
| Pop. 2000 to Now | -1.3% | 4.0% | 15.6% |
| Pop. 1990 to Now | 8.7% | 10.7% | 30.8% |
| space4 | | | |
| Population Density | 1,573.3 | 1,150.0 | 93.4 |
| Land Area | 1.9 | 10.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Versailles, OH | Wilmington, OH | United States |
| Age 0 to 4 | 3.4% | 7.3% | 5.9% |
| Age 5 to 9 | 5.3% | 6.1% | 6.1% |
| Age 10 to 14 | 8.2% | 6.1% | 6.6% |
| Age 15 to 17 | 5.2% | 3.0% | 3.9% |
| Age 18 to 20 | 4.2% | 7.7% | 4.0% |
| Age 21 to 24 | 3.7% | 7.6% | 5.2% |
| Age 25 to 34 | 11.9% | 12.0% | 13.8% |
| Age 35 to 44 | 10.1% | 9.3% | 12.9% |
| Age 45 to 54 | 11.7% | 10.8% | 12.6% |
| Age 55 to 59 | 6.6% | 6.0% | 6.7% |
| Age 60 to 64 | 9.5% | 6.6% | 6.3% |
| Age 65 to 74 | 10.6% | 9.2% | 9.6% |
| Age 75 to 84 | 8.0% | 5.6% | 4.5% |
| Age 85 and over | 1.6% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Versailles, OH | Wilmington, OH | United States |
| White | 98.8% | 87.1% | 59.4% |
| Black | 0.4% | 4.0% | 12.2% |
| Asian | 0.0% | 1.1% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.5% | 0.4% |
| Two or More Races | 0.6% | 4.6% | 3.2% |
| Hispanic | 0.2% | 2.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Versailles, OH | Wilmington, OH | United States |
| Married Population | 52.8% | 39.5% | 49.8% |
| Currently Married | 52.5% | 37.2% | 48.0% |
| Married but Separated | 0.3% | 2.3% | 1.8% |
| Single Population | 47.2% | 60.5% | 50.2% |
| Never Married | 28.6% | 35.9% | 33.8% |
| Divorced | 10.5% | 15.3% | 10.8% |
| Widowed | 8.2% | 9.3% | 5.6% |
| space5 | | | |
| Household Size | 2.30 | 2.16 | 2.60 |
| Households | 1,233 | 5,298 | 124,010,992 |
| Family Households | 755 | 2,850 | 80,755,759 |
| Married couple, w/children | 35.8% | 21.3% | 30.5% |
| Married couple, no children | 46.2% | 39.7% | 42.9% |
| Non Family Households | 478 | 2,448 | 43,255,233 |
| Single householder, w/children | 9.9% | 26.9% | 15.8% |
| Single householder, no children | 8.1% | 12.1% | 10.8% |