| | Newington, VA | Western Springs, IL | United States |
| Population | 13,419 | 13,550 | 329,725,481 |
| Female Population | 51.3% | 49.1% | 50.5% |
| Male Population | 48.7% | 50.9% | 49.5% |
| Median Age | 37.2 | 42.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 13,212 | 12,960 | 309,327,143 |
| Population - 2000 | 19,784 | 12,493 | 285,036,114 |
| Population - 1990 | 17,965 | 11,984 | 251,960,433 |
| Pop. 2000 to Now | -31.8% | 6.3% | 15.6% |
| Pop. 1990 to Now | -24.9% | 10.8% | 30.8% |
| space4 | | | |
| Population Density | 2,926.7 | 4,858.4 | 93.4 |
| Land Area | 4.6 | 2.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Newington, VA | Western Springs, IL | United States |
| Age 0 to 4 | 5.9% | 7.8% | 5.9% |
| Age 5 to 9 | 6.7% | 9.1% | 6.1% |
| Age 10 to 14 | 7.1% | 9.5% | 6.6% |
| Age 15 to 17 | 3.2% | 5.5% | 3.9% |
| Age 18 to 20 | 3.0% | 3.0% | 4.0% |
| Age 21 to 24 | 3.5% | 1.7% | 5.2% |
| Age 25 to 34 | 16.1% | 3.4% | 13.8% |
| Age 35 to 44 | 14.2% | 14.0% | 12.9% |
| Age 45 to 54 | 13.0% | 15.7% | 12.6% |
| Age 55 to 59 | 5.5% | 10.8% | 6.7% |
| Age 60 to 64 | 7.9% | 6.0% | 6.3% |
| Age 65 to 74 | 10.0% | 6.6% | 9.6% |
| Age 75 to 84 | 2.9% | 4.5% | 4.5% |
| Age 85 and over | 0.9% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Newington, VA | Western Springs, IL | United States |
| White | 44.3% | 91.1% | 59.4% |
| Black | 18.0% | 0.7% | 12.2% |
| Asian | 14.4% | 1.1% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.1% | 0.1% | 0.4% |
| Two or More Races | 5.5% | 0.9% | 3.2% |
| Hispanic | 16.8% | 5.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Newington, VA | Western Springs, IL | United States |
| Married Population | 60.5% | 73.0% | 49.8% |
| Currently Married | 59.9% | 72.5% | 48.0% |
| Married but Separated | 0.6% | 0.5% | 1.8% |
| Single Population | 39.5% | 27.0% | 50.2% |
| Never Married | 28.8% | 18.8% | 33.8% |
| Divorced | 7.0% | 2.8% | 10.8% |
| Widowed | 3.7% | 5.4% | 5.6% |
| space5 | | | |
| Household Size | 2.96 | 3.00 | 2.60 |
| Households | 4,539 | 4,510 | 124,010,992 |
| Family Households | 3,453 | 3,901 | 80,755,759 |
| Married couple, w/children | 42.3% | 47.6% | 30.5% |
| Married couple, no children | 44.2% | 44.2% | 42.9% |
| Non Family Households | 1,086 | 609 | 43,255,233 |
| Single householder, w/children | 8.1% | 3.3% | 15.8% |
| Single householder, no children | 5.5% | 4.9% | 10.8% |