| | Rochester, KY | Morgantown, KY | United States |
| Population | 237 | 2,761 | 329,725,481 |
| Female Population | 44.7% | 50.4% | 50.5% |
| Male Population | 55.3% | 49.6% | 49.5% |
| Median Age | 39 | 38.1 | 38.4 |
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| Population - 2010 | 153 | 2,442 | 309,327,143 |
| Population - 2000 | 186 | 2,544 | 285,036,114 |
| Population - 1990 | 191 | 2,284 | 251,960,433 |
| Pop. 2000 to Now | -19.9% | -6.7% | 15.6% |
| Pop. 1990 to Now | -22.0% | 3.9% | 30.8% |
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| Population Density | 508.6 | 829.9 | 93.4 |
| Land Area | 0.5 | 3.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Rochester, KY | Morgantown, KY | United States |
| Age 0 to 4 | 5.5% | 6.3% | 5.9% |
| Age 5 to 9 | 0.0% | 6.9% | 6.1% |
| Age 10 to 14 | 6.3% | 6.3% | 6.6% |
| Age 15 to 17 | 3.4% | 3.5% | 3.9% |
| Age 18 to 20 | 0.0% | 3.3% | 4.0% |
| Age 21 to 24 | 10.5% | 3.9% | 5.2% |
| Age 25 to 34 | 9.7% | 14.8% | 13.8% |
| Age 35 to 44 | 24.1% | 16.0% | 12.9% |
| Age 45 to 54 | 11.4% | 13.4% | 12.6% |
| Age 55 to 59 | 7.6% | 4.6% | 6.7% |
| Age 60 to 64 | 8.4% | 4.0% | 6.3% |
| Age 65 to 74 | 7.6% | 7.8% | 9.6% |
| Age 75 to 84 | 3.8% | 6.2% | 4.5% |
| Age 85 and over | 1.7% | 3.0% | 1.9% |
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| Race | | | |
| | Rochester, KY | Morgantown, KY | United States |
| White | 94.9% | 80.6% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 1.0% | 5.6% |
| Native American | 2.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 3.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 4.3% | 3.2% |
| Hispanic | 0.0% | 14.1% | 18.4% |
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| Marriage & Family | | | |
| | Rochester, KY | Morgantown, KY | United States |
| Married Population | 42.6% | 40.2% | 49.8% |
| Currently Married | 42.6% | 38.1% | 48.0% |
| Married but Separated | 0.0% | 2.1% | 1.8% |
| Single Population | 57.4% | 59.8% | 50.2% |
| Never Married | 35.4% | 27.3% | 33.8% |
| Divorced | 15.3% | 22.5% | 10.8% |
| Widowed | 6.7% | 10.0% | 5.6% |
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| Household Size | 3.25 | 2.64 | 2.60 |
| Households | 73 | 987 | 124,010,992 |
| Family Households | 62 | 537 | 80,755,759 |
| Married couple, w/children | 22.6% | 32.0% | 30.5% |
| Married couple, no children | 48.4% | 27.7% | 42.9% |
| Non Family Households | 11 | 450 | 43,255,233 |
| Single householder, w/children | 12.9% | 32.4% | 15.8% |
| Single householder, no children | 16.1% | 7.8% | 10.8% |