| Statistic | Highland Park-Overlee Knolls | Arlington | Virginia |
| Population | 1,601 | 236,434 | 8,535,519 |
| Population density (sq mi) | 2,999 | 9,095 | 218 |
| Median age | 37.4 | 34.8 | 37.8 |
| Male/Female ratio | 1.2:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | n/a | 47% | 57% |
| Families w/ Kids under 18 | 52% | 43% | 44% |
| Speak English | n/a | 71% | 84% |
| Speak Spanish | n/a | 13% | 7% |
| Race | Highland Park-Overlee Knolls | Arlington | Virginia |
| White | 93.56% | 69.05% | 68.75% |
| Black | 1.05% | 9.22% | 19.21% |
| Asian | 2.62% | 10.35% | 6.05% |
| American Indian | 0.04% | 0.36% | 0.26% |
| Native Hawaiian | 0.00% | 0.12% | 0.07% |
| Mixed race | 1.84% | 5.80% | 3.37% |
| Other race | 0.90% | 5.10% | 2.30% |
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