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Maricopa County, Arizona

US county information
NameMaricopa County
US Area
Total Area9224.27 sq mi (23890.9 km2)
Land Area9203.14 sq mi (23836.1 km2)
Water Area21.13 sq mi (54.7 km2)
Population3817117 (2010)
Density160.1/km2 (414.7/sq mi)
FoundedFebruary 14, 1871

     Home | County | Maricopa County Arizona

Maricopa County (c-eniconˌmærɨˈkoʊpə ) is located in the south-central part of the U.S. state of Arizona. As of April 1, 2010, its population is an estimated 3,817,117, the most populous in the state, which ranks fourth among the nation's counties and is greater than the population of 23 states. Maricopa County is also one of the largest counties in the United States by area having a land area greater than that of seven states. The county seat is Phoenix, which is Arizona's largest city and capital. The center of population of Arizona is located in Maricopa County, in the town of Gilbert. It is by far Arizona's most populous county, encompassing well more than half of the state's residents.

The population explosion is evident in a 2007 Forbes study which ranked four of Maricopa County's municipalities in the top ten fastest-growing cities in the nation. Those included Buckeye as the second-fastest-growing city, Surprise and Goodyear as 3rd and 4th, and Avondale as 9th. All four of these cities are located in the growing "West Valley", which is the area of Maricopa County to the west of the city of Phoenix.

There are five Indian reservations located in the county. The largest of these are the Salt River Pima-Maricopa Indian Community (east of Scottsdale) and the Gila River Indian Community (south of Phoenix).

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