| | McKenney, VA | Colonial Heights, VA | United States |
| Population | 506 | 18,127 | 329,725,481 |
| Female Population | 49.0% | 54.0% | 50.5% |
| Male Population | 51.0% | 46.0% | 49.5% |
| Median Age | 47.2 | 39 | 38.4 |
| space3 | | | |
| Population - 2010 | 485 | 17,338 | 309,327,143 |
| Population - 2000 | 441 | 16,897 | 285,036,114 |
| Population - 1990 | 386 | 16,064 | 251,960,433 |
| Pop. 2000 to Now | 11.1% | 1.8% | 15.6% |
| Pop. 1990 to Now | 26.9% | 7.1% | 30.8% |
| space4 | | | |
| Population Density | 545.3 | 2,410.8 | 93.4 |
| Land Area | 0.9 | 7.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | McKenney, VA | Colonial Heights, VA | United States |
| Age 0 to 4 | 3.8% | 5.9% | 5.9% |
| Age 5 to 9 | 3.8% | 6.9% | 6.1% |
| Age 10 to 14 | 9.9% | 6.5% | 6.6% |
| Age 15 to 17 | 3.4% | 3.9% | 3.9% |
| Age 18 to 20 | 5.1% | 2.3% | 4.0% |
| Age 21 to 24 | 4.7% | 4.1% | 5.2% |
| Age 25 to 34 | 9.5% | 13.7% | 13.8% |
| Age 35 to 44 | 7.3% | 12.4% | 12.9% |
| Age 45 to 54 | 19.6% | 12.5% | 12.6% |
| Age 55 to 59 | 8.1% | 8.2% | 6.7% |
| Age 60 to 64 | 7.1% | 4.6% | 6.3% |
| Age 65 to 74 | 8.3% | 9.9% | 9.6% |
| Age 75 to 84 | 9.1% | 5.7% | 4.5% |
| Age 85 and over | 0.4% | 3.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | McKenney, VA | Colonial Heights, VA | United States |
| White | 64.0% | 70.3% | 59.4% |
| Black | 32.8% | 16.2% | 12.2% |
| Asian | 0.0% | 3.5% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.6% | 3.0% | 3.2% |
| Hispanic | 1.6% | 6.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | McKenney, VA | Colonial Heights, VA | United States |
| Married Population | 34.7% | 48.8% | 49.8% |
| Currently Married | 32.5% | 46.5% | 48.0% |
| Married but Separated | 2.2% | 2.3% | 1.8% |
| Single Population | 65.3% | 51.2% | 50.2% |
| Never Married | 34.9% | 32.0% | 33.8% |
| Divorced | 14.1% | 12.3% | 10.8% |
| Widowed | 16.3% | 6.9% | 5.6% |
| space5 | | | |
| Household Size | 2.59 | 2.41 | 2.60 |
| Households | 195 | 7,465 | 124,010,992 |
| Family Households | 108 | 5,023 | 80,755,759 |
| Married couple, w/children | 26.9% | 23.2% | 30.5% |
| Married couple, no children | 35.2% | 40.1% | 42.9% |
| Non Family Households | 87 | 2,442 | 43,255,233 |
| Single householder, w/children | 14.8% | 23.7% | 15.8% |
| Single householder, no children | 23.1% | 13.0% | 10.8% |