Maricopa County | |
|---|---|
 The Maricopa County Courthouse and Old Phoenix City Hall, also known as the County-City Administration Building, in 2013 | |
 Flag  Seal | |
 Location within the U.S. state of Arizona | |
 Arizona's location within the U.S. | |
| Coordinates: 33°30′50″N 112°28′33″W / 33.5139°N 112.4758°W | |
| Country |  United States |
| State |  Arizona |
| Founded | February 14, 1871 |
| Named for | Maricopa people |
| Seat | Phoenix |
| Largest city | Phoenix |
| Area | |
| • Total | 9,224 sq mi (23,890 km2) |
| • Land | 9,200 sq mi (24,000 km2) |
| • Water | 24 sq mi (60 km2) 0.3% |
| Population (2020) | |
| • Total | 4,420,568 |
| • Estimate (2023) | 4,585,871  |
| • Density | 480/sq mi (190/km2) |
| Time zone | UTC−7 (Mountain) |
| Congressional districts | 1st, 2nd, 3rd, 4th, 5th, 7th, 8th, 9th |
| Website | www |
Maricopa County (/ˌmærɪˈkoʊpə/) is a county in the south-central part of the U.S. state of Arizona. As of the 2020 census the population was 4,420,568,[1] or about 62% of the state's total, making it the fourth-most populous county in the United States and the most populous county in Arizona, and making Arizona one of the nation's most centralized states. The county seat is Phoenix,[2] the state capital and fifth-most populous city in the United States.
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.
Maricopa County was named after the Maricopa people.[3] Five Indian reservations are located in the county.[4] The largest are the Salt River Pima–Maricopa Indian Community (east of Scottsdale) and the Gila River Indian Community (south of Chandler).
- ^ "State & County QuickFacts". United States Census Bureau. Retrieved September 27, 2022.
- ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
- ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. U.S. Government Printing Office. p. 199.
- ^ Indian Reservations in the Continental United States, Bureau of Indian Affairs on National Park Service website. Retrieved January 18, 2009.