Maricopa County, Arizona Demographics 2026

Population Overview

Maricopa County is located in Arizona with a total population of 4,491,987. It is the 1st most populous county out of 15 in Arizona.

Age Demographics

The median age in Maricopa County is 37.5 years. This is 3% lower than the state median of 38.8 years.

Economy, Income & Housing

The median household income in Maricopa County is $85,518. This is 11% higher than the state median of $76,872. Compared to the national median of $78,538, household income here is 9% higher. The poverty rate stands at 11.3%. This is 12% lower than the state poverty rate of 12.8%. The unemployment rate is 4.6%. This is 11% lower than the state rate of 5.2%. The median home value is $414,700. Housing costs are 16% higher than the state median of $358,900. The home-value-to-income ratio is 4.8x. 65.0% of occupied housing units are owner-occupied. This homeownership rate is 3% lower than the state average of 67.0%.

Race & Ethnicity

The largest racial or ethnic group in Maricopa County is White (non-Hispanic), making up 53.4% of the population. Hispanic or Latino residents account for 30.9%.

Education

35.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 10% higher than the state rate of 32.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 89.5%.