| PEOPLE | Los Angeles | Phoenix | United States |
| Population | 3,792,621 | 1,445,632 | 308,035,306 |
| Pop. Density | 8,092 | 2,798 | 87 |
| Pop. Change | 3.27% | 5.11% | 8.07% |
| Median Age | 34.2 | 32.2 | 37.3 |
| Households | 1,318,168 | 514,806 | 116,716,292 |
| Household Size | 2.79 | 2.78 | 2.58 |
| Male Population | 49.81% | 50.15% | 49.27% |
| Female Population | 50.19% | 49.85% | 50.96% |
| Married Population | 35.83% | 38.49% | 47.02% |
| Single Population | 64.17% | 61.51% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.62% | 8.29% | 6.56% |
| Age 5 to 9 | 6.10% | 7.83% | 6.61% |
| Age 10 to 14 | 6.26% | 7.52% | 6.71% |
| Age 15 to 17 | 4.07% | 4.60% | 4.21% |
| Age 18 to 20 | 3.16% | 3.04% | 2.95% |
| Age 21 to 24 | 8.29% | 7.38% | 7.01% |
| Age 25 to 34 | 16.85% | 15.50% | 13.33% |
| Age 35 to 44 | 15.04% | 14.28% | 13.33% |
| Age 45 to 49 | 13.27% | 13.50% | 14.61% |
| Age 50 to 54 | 13.27% | 13.50% | 14.61% |
| Age 55 to 59 | 9.87% | 9.62% | 11.84% |
| Age 60 to 64 | 9.87% | 9.62% | 11.84% |
| Age 65 to 74 | 5.51% | 4.87% | 7.05% |
| Age 75 to 84 | 3.39% | 2.56% | 4.24% |
| Age 85 and over | 1.56% | 1.00% | 1.78% |
| RACE | | | |
| White | 49.79% | 65.85% | 72.41% |
| Black | 9.63% | 6.48% | 12.61% |
| Asian | 11.26% | 3.15% | 4.75% |
| American Indian | 0.74% | 2.24% | 0.95% |
| Other | 28.59% | 22.28% | 9.28% |
| Hispanic | 1.41% | 2.90% | 16.35% |
| Non-Hispanic | 98.59% | 97.10% | 83.65% |
| FAMILY | | | |
| Married, w/children | 31.43% | 32.41% | 30.42% |
| Married, no children | 33.27% | 33.47% | 42.46% |
| Single, w/children | 16.59% | 19.84% | 14.39% |
| Single, no children | 18.71% | 14.28% | 12.73% |
| Divorced | 8.52% | 13.39% | 10.62% |
| Separated | 8.45% | 7.27% | 4.97% |
| Widowed | 5.29% | 4.82% | 6.14% |
| Now Married | 35.54% | 38.44% | 46.32% |
| Never Married | 42.21% | 36.08% | 31.95% |