| | Versailles, KY | Miamisburg, OH | United States |
| Population | 10,196 | 19,878 | 329,725,481 |
| Female Population | 51.6% | 50.2% | 50.5% |
| Male Population | 48.4% | 49.8% | 49.5% |
| Median Age | 41.5 | 40 | 38.4 |
| space3 | | | |
| Population - 2010 | 8,812 | 20,166 | 309,327,143 |
| Population - 2000 | 7,511 | 19,489 | 285,036,114 |
| Population - 1990 | 7,269 | 17,834 | 251,960,433 |
| Pop. 2000 to Now | 23.9% | 3.2% | 15.6% |
| Pop. 1990 to Now | 28.1% | 12.8% | 30.8% |
| space4 | | | |
| Population Density | 1,644.0 | 1,629.8 | 93.4 |
| Land Area | 6.2 | 12.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Versailles, KY | Miamisburg, OH | United States |
| Age 0 to 4 | 6.9% | 5.5% | 5.9% |
| Age 5 to 9 | 5.4% | 7.0% | 6.1% |
| Age 10 to 14 | 6.0% | 7.5% | 6.6% |
| Age 15 to 17 | 2.8% | 4.5% | 3.9% |
| Age 18 to 20 | 4.2% | 2.1% | 4.0% |
| Age 21 to 24 | 5.0% | 4.5% | 5.2% |
| Age 25 to 34 | 12.9% | 12.7% | 13.8% |
| Age 35 to 44 | 9.8% | 12.1% | 12.9% |
| Age 45 to 54 | 12.3% | 10.7% | 12.6% |
| Age 55 to 59 | 9.6% | 6.7% | 6.7% |
| Age 60 to 64 | 8.8% | 9.1% | 6.3% |
| Age 65 to 74 | 10.7% | 10.2% | 9.6% |
| Age 75 to 84 | 4.8% | 4.6% | 4.5% |
| Age 85 and over | 0.9% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Versailles, KY | Miamisburg, OH | United States |
| White | 77.1% | 92.4% | 59.4% |
| Black | 5.9% | 1.7% | 12.2% |
| Asian | 0.6% | 1.1% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.4% | 0.4% |
| Two or More Races | 3.7% | 2.1% | 3.2% |
| Hispanic | 12.4% | 1.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Versailles, KY | Miamisburg, OH | United States |
| Married Population | 48.6% | 56.1% | 49.8% |
| Currently Married | 47.2% | 55.1% | 48.0% |
| Married but Separated | 1.5% | 1.0% | 1.8% |
| Single Population | 51.4% | 43.9% | 50.2% |
| Never Married | 28.4% | 27.5% | 33.8% |
| Divorced | 16.7% | 9.7% | 10.8% |
| Widowed | 6.3% | 6.7% | 5.6% |
| space5 | | | |
| Household Size | 2.32 | 2.66 | 2.60 |
| Households | 4,351 | 7,378 | 124,010,992 |
| Family Households | 2,679 | 5,292 | 80,755,759 |
| Married couple, w/children | 25.3% | 35.3% | 30.5% |
| Married couple, no children | 43.2% | 42.9% | 42.9% |
| Non Family Households | 1,672 | 2,086 | 43,255,233 |
| Single householder, w/children | 19.7% | 14.2% | 15.8% |
| Single householder, no children | 11.8% | 7.6% | 10.8% |