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Population Review

What is the population of Maricopa County, AZ?

Maricopa County in Arizona has a population of 4,491,987, according to Census ACS 2023 5-Year estimates. The median household income is $85,518.

Context

Maricopa County is one of 15 counties in Arizona. Counties are the primary subdivisions of states and administer courts, elections, property records, and many public services.

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Maricopa County ProfileArizona CountiesLargest US Counties

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Frequently Asked Questions

Maricopa County in Arizona has a population of 4,491,987, according to Census ACS 2023 5-Year estimates. The median household income is $85,518.