Tucson is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona. It is the second largest city in Arizona, with a population of 520,116 in the 2010 United States Census, while the 2015 estimated population of the entire Tucson metropolitan statistical area was 980,263. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area, with a total population of 1,010,025 as of... Show more

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