| | Lake Monticello, VA | Front Royal, VA | United States |
| Population | 10,438 | 15,039 | 329,725,481 |
| Female Population | 54.5% | 51.5% | 50.5% |
| Male Population | 45.6% | 48.5% | 49.5% |
| Median Age | 41.4 | 37.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 10,634 | 14,451 | 309,327,143 |
| Population - 2000 | 6,852 | 13,589 | 285,036,114 |
| Population - 1990 | 2,331 | 11,880 | 251,960,433 |
| Pop. 2000 to Now | 49.9% | 13.3% | 15.6% |
| Pop. 1990 to Now | 340.7% | 29.5% | 30.8% |
| space4 | | | |
| Population Density | 1,180.2 | 1,463.8 | 93.4 |
| Land Area | 8.8 | 10.3 | 3,531,905.4 |
| Water Area | 0.6 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Lake Monticello, VA | Front Royal, VA | United States |
| Age 0 to 4 | 6.7% | 7.0% | 5.9% |
| Age 5 to 9 | 6.2% | 7.2% | 6.1% |
| Age 10 to 14 | 6.9% | 7.1% | 6.6% |
| Age 15 to 17 | 4.0% | 2.5% | 3.9% |
| Age 18 to 20 | 1.8% | 2.6% | 4.0% |
| Age 21 to 24 | 3.7% | 5.1% | 5.2% |
| Age 25 to 34 | 12.5% | 14.8% | 13.8% |
| Age 35 to 44 | 11.9% | 12.1% | 12.9% |
| Age 45 to 54 | 12.1% | 11.1% | 12.6% |
| Age 55 to 59 | 6.0% | 7.7% | 6.7% |
| Age 60 to 64 | 7.0% | 7.3% | 6.3% |
| Age 65 to 74 | 12.2% | 8.1% | 9.6% |
| Age 75 to 84 | 6.5% | 5.3% | 4.5% |
| Age 85 and over | 2.5% | 2.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lake Monticello, VA | Front Royal, VA | United States |
| White | 81.8% | 75.8% | 59.4% |
| Black | 8.4% | 8.0% | 12.2% |
| Asian | 0.2% | 1.8% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.0% | 0.2% |
| Other | 0.3% | 1.3% | 0.4% |
| Two or More Races | 3.6% | 5.8% | 3.2% |
| Hispanic | 5.4% | 7.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Lake Monticello, VA | Front Royal, VA | United States |
| Married Population | 60.2% | 45.5% | 49.8% |
| Currently Married | 59.9% | 43.9% | 48.0% |
| Married but Separated | 0.3% | 1.6% | 1.8% |
| Single Population | 39.8% | 54.5% | 50.2% |
| Never Married | 23.9% | 32.1% | 33.8% |
| Divorced | 10.5% | 14.4% | 10.8% |
| Widowed | 5.3% | 8.1% | 5.6% |
| space5 | | | |
| Household Size | 2.50 | 2.57 | 2.60 |
| Households | 4,178 | 5,770 | 124,010,992 |
| Family Households | 2,988 | 3,440 | 80,755,759 |
| Married couple, w/children | 31.2% | 28.5% | 30.5% |
| Married couple, no children | 52.4% | 38.9% | 42.9% |
| Non Family Households | 1,190 | 2,330 | 43,255,233 |
| Single householder, w/children | 12.6% | 21.7% | 15.8% |
| Single householder, no children | 3.8% | 11.0% | 10.8% |