When it comes to population and growth statistics for planning by the Maricopa Association of Governments (MAG), statistics vary by three different types of geography:
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Arizona and Maricopa county estimates and projections from the Arizona State Demographer's Office; U.S. estimates and projections from Census Bureau. *Population rounded to nearest 1,000.
From Arizona State Land Department 2016
* Transaction Privilege and Severance Tax
Source: Arizona Department of Revenue 2016 Annual Report