| | Boston, VA | California, MD | United States |
| Population | 629 | 14,129 | 329,725,481 |
| Female Population | 49.3% | 50.0% | 50.5% |
| Male Population | 50.7% | 50.0% | 49.5% |
| Median Age | 31.2 | 35.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 684 | 11,970 | 309,327,143 |
| Population - 2000 | 493 | 9,307 | 285,036,114 |
| Population - 1990 | 453 | 7,626 | 251,960,433 |
| Pop. 2000 to Now | 33.9% | 49.1% | 15.6% |
| Pop. 1990 to Now | 45.7% | 81.9% | 30.8% |
| space4 | | | |
| Population Density | 245.3 | 1,097.7 | 93.4 |
| Land Area | 2.6 | 12.9 | 3,531,905.4 |
| Water Area | 0.0 | 2.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Boston, VA | California, MD | United States |
| Age 0 to 4 | 0.0% | 5.1% | 5.9% |
| Age 5 to 9 | 14.9% | 6.0% | 6.1% |
| Age 10 to 14 | 14.8% | 9.1% | 6.6% |
| Age 15 to 17 | 4.9% | 5.3% | 3.9% |
| Age 18 to 20 | 0.0% | 4.2% | 4.0% |
| Age 21 to 24 | 1.6% | 3.9% | 5.2% |
| Age 25 to 34 | 24.5% | 15.3% | 13.8% |
| Age 35 to 44 | 4.8% | 13.7% | 12.9% |
| Age 45 to 54 | 14.1% | 15.7% | 12.6% |
| Age 55 to 59 | 7.5% | 6.7% | 6.7% |
| Age 60 to 64 | 2.5% | 5.1% | 6.3% |
| Age 65 to 74 | 8.1% | 6.4% | 9.6% |
| Age 75 to 84 | 2.2% | 2.8% | 4.5% |
| Age 85 and over | 0.0% | 0.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Boston, VA | California, MD | United States |
| White | 5.2% | 63.3% | 59.4% |
| Black | 91.1% | 24.1% | 12.2% |
| Asian | 0.0% | 3.6% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.6% | 0.4% |
| Two or More Races | 0.0% | 3.2% | 3.2% |
| Hispanic | 3.7% | 4.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Boston, VA | California, MD | United States |
| Married Population | 35.7% | 53.5% | 49.8% |
| Currently Married | 35.7% | 51.5% | 48.0% |
| Married but Separated | 0.0% | 2.1% | 1.8% |
| Single Population | 64.3% | 46.5% | 50.2% |
| Never Married | 50.5% | 32.7% | 33.8% |
| Divorced | 6.8% | 8.9% | 10.8% |
| Widowed | 7.0% | 4.8% | 5.6% |
| space5 | | | |
| Household Size | 2.90 | 2.64 | 2.60 |
| Households | 217 | 5,343 | 124,010,992 |
| Family Households | 148 | 3,609 | 80,755,759 |
| Married couple, w/children | 44.6% | 36.4% | 30.5% |
| Married couple, no children | 6.8% | 39.7% | 42.9% |
| Non Family Households | 69 | 1,734 | 43,255,233 |
| Single householder, w/children | 20.9% | 16.9% | 15.8% |
| Single householder, no children | 27.7% | 6.9% | 10.8% |