Maricopa County is the central county of the Phoenix–Mesa–Chandler Metropolitan Statistical Area. The Office of Management and Budget renamed the metropolitan area in September 2018. Previously, it was the Phoenix–Mesa–Glendale metropolitan area, and in 2000, that was changed to Phoenix–Mesa–Scottsdale.

Introduction Nestled in the Sonoran Desert of Pinal County, Maricopa stands as a testament to remarkable growth and transformation in south-central Arizona. With a population of approximately 74,180 residents as of mid-2024, this vibrant community has experienced one of the most dramatic population expansions in American municipal history, growing from…

Maricopa County is Arizona’s most populous and fastest growing county. It is the largest of Arizona’s fifteen counties and the fourth largest county in the nation.

Maricopa is a city in the Gila River Valley in Pinal County, Arizona, United States. With 76,654 residents as of 2024, Maricopa is the second largest incorporated municipality in Pinal County.

Maricopa County is the central county of the Phoenix–Mesa–Chandler Metropolitan Statistical Area. The Office of Management and Budget renamed the metropolitan area in September 2018.

Find the most frequently visited departments, elected offices, and courts in Maricopa County.

Who we are: We are a law enforcement agency, headed by an elected Sheriff, Jerry Sheridan, which serves and protects the unincorporated areas of Maricopa County as well as several contract cities.