Arizona City is an unincorporated census-designated place in southwestern Pinal County, Arizona, United States. It is located near the junction of Interstate 8 and Interstate 10 at the midpoint between Phoenix and Tucson, approximately 60 miles from the downtown of both cities. The population was 10,475 as of the 2010 U.S. Census. It is estimated to be approximately 11,030 as of a 2017 U.S. Census estimate.