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Arizona's County Population as a Share of the State, 2010

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Visualization Notes:

Of Arizona’s nearly 6.4 million residents on April 1, 2010, approximately 60 percent—more than 3.8 million—lived in Maricopa County, in which most of the Phoenix metropolitan area is located. Another 6 percent of the state’s residents lived in Pinal County, which also is part of the Phoenix metro area. Pima County (the Tucson metro area) had nearly 1 million residents (15 percent of the state total). Combined, Arizona’s 12 counties outside of the Phoenix and Tucson metro areas were home to a little more than 1.2 million residents (19 percent of the state total) in 2010.