| Statistic | Oak Tree | Oakland | California |
| Population | 5,268 | 431,366 | 40,994,941 |
| Population density (sq mi) | 51,153 | 7,717 | 263 |
| Median age | 32.7 | 36.6 | 36.0 |
| Male/Female ratio | 1.2:1 | 0.9:1 | 1.0:1 |
| Married (15yrs & older) | n/a | 43% | 52% |
| Families w/ Kids under 18 | 66% | 43% | 46% |
| Speak English | n/a | 60% | 56% |
| Speak Spanish | n/a | 22% | 29% |
| Race | Oak Tree | Oakland | California |
| White | 18.14% | 34.36% | 61.26% |
| Black | 16.76% | 22.69% | 5.85% |
| Asian | 14.09% | 15.76% | 13.85% |
| American Indian | 3.65% | 0.90% | 0.74% |
| Native Hawaiian | 0.00% | 0.60% | 0.39% |
| Mixed race | 4.35% | 8.43% | 4.62% |
| Other race | 43.01% | 17.28% | 13.28% |
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