Arizona / Counties by Population
Below are the 15 Arizona counties sorted by population from 1 to 15 . The population data are from the 2020 Census Redistricting dataset. If 2020 Census data are not available for a geography, then the population data are from the Census’ 2019 American Community Survey.
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|12||Santa Cruz County||46,480|
|14||La Paz County||20,793|
United States Census Bureau. B01001 SEX BY AGE, 2019 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 10 December 2020. http://www.census.gov/.