| PEOPLE | Maricopa | United States |
| Population | 43,482 | 308,035,306 |
| Pop. Density | 916 | 87 |
| Pop. Change | 2,545.96% | 8.07% |
| Median Age | 31.2 | 37.3 |
| Households | 14,359 | 116,716,292 |
| Household Size | 3.02 | 2.58 |
| Male Population | 49.63% | 49.27% |
| Female Population | 50.37% | 50.96% |
| Married Population | 47.95% | 47.02% |
| Single Population | 52.05% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | |
| Age 0 to 4 | 10.65% | 6.56% |
| Age 5 to 9 | 9.84% | 6.61% |
| Age 10 to 14 | 8.20% | 6.71% |
| Age 15 to 17 | 3.81% | 4.21% |
| Age 18 to 20 | 1.78% | 2.95% |
| Age 21 to 24 | 4.56% | 7.01% |
| Age 25 to 34 | 18.99% | 13.33% |
| Age 35 to 44 | 15.95% | 13.33% |
| Age 45 to 49 | 10.77% | 14.61% |
| Age 50 to 54 | 10.77% | 14.61% |
| Age 55 to 59 | 9.09% | 11.84% |
| Age 60 to 64 | 9.09% | 11.84% |
| Age 65 to 74 | 4.74% | 7.05% |
| Age 75 to 84 | 1.34% | 4.24% |
| Age 85 and over | 0.28% | 1.78% |
| RACE | | |
| White | 70.21% | 72.41% |
| Black | 9.67% | 12.61% |
| Asian | 4.14% | 4.75% |
| American Indian | 1.98% | 0.95% |
| Other | 13.99% | 9.28% |
| Hispanic | 25.70% | 16.35% |
| Non-Hispanic | 74.30% | 83.65% |
| FAMILY | | |
| Married, w/children | 41.63% | 30.42% |
| Married, no children | 36.11% | 42.46% |
| Single, w/children | 14.19% | 14.39% |
| Single, no children | 8.06% | 12.73% |
| Divorced | 10.09% | 10.62% |
| Separated | 6.35% | 4.97% |
| Widowed | 3.35% | 6.14% |
| Now Married | 48.92% | 46.32% |
| Never Married | 31.28% | 31.95% |