| | Elkton, KY | Trenton, KY | United States |
| Population | 1,897 | 300 | 329,725,481 |
| Female Population | 52.1% | 54.0% | 50.5% |
| Male Population | 47.9% | 46.0% | 49.5% |
| Median Age | 39.7 | 46.2 | 38.4 |
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| Population - 2010 | 2,150 | 384 | 309,327,143 |
| Population - 2000 | 1,984 | 419 | 285,036,114 |
| Population - 1990 | 1,789 | 378 | 251,960,433 |
| Pop. 2000 to Now | 8.7% | -9.8% | 15.6% |
| Pop. 1990 to Now | 20.6% | 0.0% | 30.8% |
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| Population Density | 751.6 | 528.2 | 93.4 |
| Land Area | 2.5 | 0.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Elkton, KY | Trenton, KY | United States |
| Age 0 to 4 | 5.0% | 8.7% | 5.9% |
| Age 5 to 9 | 5.7% | 3.0% | 6.1% |
| Age 10 to 14 | 7.6% | 2.3% | 6.6% |
| Age 15 to 17 | 4.1% | 7.0% | 3.9% |
| Age 18 to 20 | 4.6% | 3.3% | 4.0% |
| Age 21 to 24 | 4.2% | 2.7% | 5.2% |
| Age 25 to 34 | 13.4% | 12.7% | 13.8% |
| Age 35 to 44 | 12.1% | 9.7% | 12.9% |
| Age 45 to 54 | 16.4% | 12.3% | 12.6% |
| Age 55 to 59 | 3.1% | 9.0% | 6.7% |
| Age 60 to 64 | 5.5% | 9.7% | 6.3% |
| Age 65 to 74 | 11.1% | 6.7% | 9.6% |
| Age 75 to 84 | 4.7% | 3.3% | 4.5% |
| Age 85 and over | 2.4% | 9.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Elkton, KY | Trenton, KY | United States |
| White | 79.8% | 89.0% | 59.4% |
| Black | 15.2% | 8.3% | 12.2% |
| Asian | 0.8% | 0.0% | 5.6% |
| Native American | 0.3% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.5% | 0.0% | 0.4% |
| Two or More Races | 2.0% | 2.7% | 3.2% |
| Hispanic | 1.3% | 0.0% | 18.4% |
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| Marriage & Family | | | |
| | Elkton, KY | Trenton, KY | United States |
| Married Population | 38.9% | 54.3% | 49.8% |
| Currently Married | 36.1% | 54.3% | 48.0% |
| Married but Separated | 2.8% | 0.0% | 1.8% |
| Single Population | 61.1% | 45.7% | 50.2% |
| Never Married | 28.5% | 24.8% | 33.8% |
| Divorced | 25.4% | 15.9% | 10.8% |
| Widowed | 7.2% | 5.0% | 5.6% |
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| Household Size | 2.27 | 2.50 | 2.60 |
| Households | 766 | 120 | 124,010,992 |
| Family Households | 382 | 93 | 80,755,759 |
| Married couple, w/children | 24.3% | 20.4% | 30.5% |
| Married couple, no children | 41.1% | 51.6% | 42.9% |
| Non Family Households | 384 | 27 | 43,255,233 |
| Single householder, w/children | 23.6% | 14.0% | 15.8% |
| Single householder, no children | 11.0% | 14.0% | 10.8% |