Maricopa County's 2026 population is estimated at 4,788,038, reflecting a 1.21% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Maricopa County is the largest county in Arizona. The 2010 population was 3,825,183 and has grown 25.17% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.6 years
Female: 38.7 years
Male: 36.7 years
There are 3,535,491 adults, (742,814 of whom are seniors) in Maricopa County.
Female: 2,291,731 (50.3%)
Male: 2,268,017 (49.7%)
The racial composition of Maricopa County includes 58.61% White, 9.37% other race, 5.69% Black or African American, 4.57% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,672,667 | 58.61% |
| Two or more races | 892,550 | 19.57% |
| Other race | 427,325 | 9.37% |
| Black or African American | 259,526 | 5.69% |
| Asian | 208,324 | 4.57% |
| Native American | 90,213 | 1.98% |
| Native Hawaiian or Pacific Islander | 9,143 | 0.2% |
Maricopa County 's average per capita income is $54,656. Household income levels show a median of $89,300. The poverty rate stands at 10.98%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $122,932 | $158,472 |
| Families | $105,249 | $137,721 |
| Households | $89,300 | $120,016 |
| Non Families | $57,928 | $80,129 |
Average Income
Median Household Income
Poverty Rate
