Maricopa County

Maricopa County is one of the fastest growing counties in the country and has an estimated population of 4.3 million people, making it the fourth-most populous county in the United States. The governing body is the Maricopa County Board of Supervisors. The county is comprised of 27 towns and cities.

301 W. Jefferson Street
Phoenix, AZ 85003

Maricopa County Board of Supervisors



For more detailed information on any of the resources listed above please contact Chief Innovation Officer, Jennifer Mellor at 602.495.6491 or email