| | Fries, VA | Rockholds, KY | United States |
| Population | 524 | 327 | 329,725,481 |
| Female Population | 55.0% | 56.6% | 50.5% |
| Male Population | 45.0% | 43.4% | 49.5% |
| Median Age | 34.5 | 46.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 481 | 798 | 309,327,143 |
| Population - 2000 | 614 | 379 | 285,036,114 |
| Population - 1990 | 690 | 325 | 251,960,433 |
| Pop. 2000 to Now | -27.7% | -22.4% | 15.6% |
| Pop. 1990 to Now | -35.7% | -9.5% | 30.8% |
| space4 | | | |
| Population Density | 821.3 | 275.7 | 93.4 |
| Land Area | 0.6 | 1.2 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Fries, VA | Rockholds, KY | United States |
| Age 0 to 4 | 14.7% | 0.0% | 5.9% |
| Age 5 to 9 | 6.3% | 0.0% | 6.1% |
| Age 10 to 14 | 4.2% | 5.2% | 6.6% |
| Age 15 to 17 | 1.3% | 0.0% | 3.9% |
| Age 18 to 20 | 5.0% | 20.5% | 4.0% |
| Age 21 to 24 | 2.3% | 0.0% | 5.2% |
| Age 25 to 34 | 16.2% | 11.9% | 13.8% |
| Age 35 to 44 | 6.9% | 0.0% | 12.9% |
| Age 45 to 54 | 7.1% | 41.0% | 12.6% |
| Age 55 to 59 | 1.1% | 0.0% | 6.7% |
| Age 60 to 64 | 2.7% | 0.0% | 6.3% |
| Age 65 to 74 | 22.3% | 14.7% | 9.6% |
| Age 75 to 84 | 8.2% | 0.0% | 4.5% |
| Age 85 and over | 1.7% | 6.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Fries, VA | Rockholds, KY | United States |
| White | 96.2% | 100.0% | 59.4% |
| Black | 0.6% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 0.0% | 3.2% |
| Hispanic | 3.2% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Fries, VA | Rockholds, KY | United States |
| Married Population | 49.0% | 41.3% | 49.8% |
| Currently Married | 44.9% | 41.3% | 48.0% |
| Married but Separated | 4.1% | 0.0% | 1.8% |
| Single Population | 51.0% | 58.7% | 50.2% |
| Never Married | 26.8% | 34.2% | 33.8% |
| Divorced | 10.5% | 17.4% | 10.8% |
| Widowed | 13.8% | 7.1% | 5.6% |
| space5 | | | |
| Household Size | 2.69 | 3.37 | 2.60 |
| Households | 195 | 97 | 124,010,992 |
| Family Households | 125 | 75 | 80,755,759 |
| Married couple, w/children | 24.8% | 0.0% | 30.5% |
| Married couple, no children | 47.2% | 77.3% | 42.9% |
| Non Family Households | 70 | 22 | 43,255,233 |
| Single householder, w/children | 16.8% | 22.7% | 15.8% |
| Single householder, no children | 11.2% | 0.0% | 10.8% |