| Statistic | Rancho San Joaquin | Irvine | California |
| Population | 4,617 | 280,132 | 40,994,941 |
| Population density (sq mi) | 8,110 | 4,271 | 263 |
| Median age | 28.2 | 33.8 | 36.0 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | n/a | 54% | 52% |
| Families w/ Kids under 18 | 62% | 52% | 46% |
| Speak English | n/a | 50% | 56% |
| Speak Spanish | n/a | 6% | 29% |
| Race | Rancho San Joaquin | Irvine | California |
| White | 38.44% | 44.93% | 61.26% |
| Black | 4.22% | 1.46% | 5.85% |
| Asian | 45.37% | 43.64% | 13.85% |
| American Indian | 0.00% | 0.16% | 0.74% |
| Native Hawaiian | 0.00% | 0.35% | 0.39% |
| Mixed race | 7.46% | 6.98% | 4.62% |
| Other race | 4.51% | 2.49% | 13.28% |
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