| PEOPLE | Brookfield | Tustin | United States |
| Population | 37,920 | 75,540 | 308,035,306 |
| Pop. Density | 1,400 | 6,817 | 87 |
| Pop. Change | -1.78% | 13.84% | 8.07% |
| Median Age | 46.6 | 33.4 | 37.3 |
| Households | 14,576 | 25,203 | 116,716,292 |
| Household Size | 2.53 | 2.97 | 2.58 |
| Male Population | 48.50% | 48.65% | 49.27% |
| Female Population | 51.50% | 51.35% | 50.96% |
| Married Population | 63.83% | 44.04% | 47.02% |
| Single Population | 36.17% | 55.96% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 4.50% | 7.59% | 6.56% |
| Age 5 to 9 | 6.18% | 7.59% | 6.61% |
| Age 10 to 14 | 7.63% | 7.18% | 6.71% |
| Age 15 to 17 | 5.20% | 4.40% | 4.21% |
| Age 18 to 20 | 1.95% | 2.57% | 2.95% |
| Age 21 to 24 | 3.32% | 6.51% | 7.01% |
| Age 25 to 34 | 7.16% | 16.78% | 13.33% |
| Age 35 to 44 | 11.21% | 16.36% | 13.33% |
| Age 45 to 49 | 18.20% | 13.63% | 14.61% |
| Age 50 to 54 | 18.20% | 13.63% | 14.61% |
| Age 55 to 59 | 14.78% | 8.88% | 11.84% |
| Age 60 to 64 | 14.78% | 8.88% | 11.84% |
| Age 65 to 74 | 9.27% | 4.84% | 7.05% |
| Age 75 to 84 | 7.51% | 2.66% | 4.24% |
| Age 85 and over | 3.10% | 1.02% | 1.78% |
| RACE | | | |
| White | 89.96% | 52.59% | 72.41% |
| Black | 1.21% | 2.28% | 12.61% |
| Asian | 6.69% | 20.25% | 4.75% |
| American Indian | 0.17% | 0.59% | 0.95% |
| Other | 1.96% | 24.29% | 9.28% |
| Hispanic | 0.81% | 13.78% | 16.35% |
| Non-Hispanic | 99.19% | 86.22% | 83.65% |
| FAMILY | | | |
| Married, w/children | 35.42% | 39.57% | 30.42% |
| Married, no children | 53.96% | 32.74% | 42.46% |
| Single, w/children | 4.87% | 14.07% | 14.39% |
| Single, no children | 5.75% | 13.62% | 12.73% |
| Divorced | 5.88% | 11.61% | 10.62% |
| Separated | 1.71% | 6.66% | 4.97% |
| Widowed | 6.55% | 4.04% | 6.14% |
| Now Married | 64.21% | 43.66% | 46.32% |
| Never Married | 21.66% | 34.04% | 31.95% |
