| | Lakeside, VA | Highland Springs, VA | United States |
| Population | 12,690 | 14,823 | 329,725,481 |
| Female Population | 50.2% | 55.9% | 50.5% |
| Male Population | 49.8% | 44.1% | 49.5% |
| Median Age | 37.7 | 37.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 12,001 | 16,332 | 309,327,143 |
| Population - 2000 | 11,157 | 15,137 | 285,036,114 |
| Population - 1990 | 12,081 | 13,823 | 251,960,433 |
| Pop. 2000 to Now | 20.2% | 9.5% | 15.6% |
| Pop. 1990 to Now | 11.0% | 19.9% | 30.8% |
| space4 | | | |
| Population Density | 2,934.8 | 1,859.2 | 93.4 |
| Land Area | 4.3 | 8.0 | 3,531,905.4 |
| Water Area | 0.1 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Lakeside, VA | Highland Springs, VA | United States |
| Age 0 to 4 | 5.1% | 6.0% | 5.9% |
| Age 5 to 9 | 5.4% | 4.7% | 6.1% |
| Age 10 to 14 | 7.8% | 10.5% | 6.6% |
| Age 15 to 17 | 2.6% | 3.4% | 3.9% |
| Age 18 to 20 | 1.4% | 3.6% | 4.0% |
| Age 21 to 24 | 5.3% | 6.3% | 5.2% |
| Age 25 to 34 | 18.7% | 12.3% | 13.8% |
| Age 35 to 44 | 14.1% | 13.0% | 12.9% |
| Age 45 to 54 | 11.4% | 12.4% | 12.6% |
| Age 55 to 59 | 5.4% | 6.1% | 6.7% |
| Age 60 to 64 | 6.8% | 7.1% | 6.3% |
| Age 65 to 74 | 10.7% | 10.0% | 9.6% |
| Age 75 to 84 | 4.1% | 2.3% | 4.5% |
| Age 85 and over | 1.3% | 2.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lakeside, VA | Highland Springs, VA | United States |
| White | 63.8% | 22.5% | 59.4% |
| Black | 16.7% | 70.9% | 12.2% |
| Asian | 4.8% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.2% | 2.0% | 0.4% |
| Two or More Races | 3.5% | 2.7% | 3.2% |
| Hispanic | 10.9% | 1.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Lakeside, VA | Highland Springs, VA | United States |
| Married Population | 46.9% | 38.6% | 49.8% |
| Currently Married | 42.9% | 33.8% | 48.0% |
| Married but Separated | 4.0% | 4.7% | 1.8% |
| Single Population | 53.1% | 61.5% | 50.2% |
| Never Married | 33.5% | 42.8% | 33.8% |
| Divorced | 14.5% | 11.4% | 10.8% |
| Widowed | 5.0% | 7.2% | 5.6% |
| space5 | | | |
| Household Size | 2.37 | 2.48 | 2.60 |
| Households | 5,314 | 5,924 | 124,010,992 |
| Family Households | 3,133 | 3,477 | 80,755,759 |
| Married couple, w/children | 26.6% | 17.6% | 30.5% |
| Married couple, no children | 39.7% | 31.0% | 42.9% |
| Non Family Households | 2,181 | 2,447 | 43,255,233 |
| Single householder, w/children | 20.7% | 36.4% | 15.8% |
| Single householder, no children | 13.1% | 15.0% | 10.8% |