Arizona / Counties by Population

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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Rank County Population
1 Maricopa County 4,328,810
2 Pima County 1,027,207
3 Pinal County 432,793
4 Yavapai County 228,067
5 Yuma County 209,468
6 Mohave County 207,695
7 Coconino County 141,274
8 Cochise County 125,867
9 Navajo County 109,270
10 Apache County 71,511
11 Gila County 53,546
12 Santa Cruz County 46,480
13 Graham County 37,996
14 La Paz County 20,793
15 Greenlee County 9,522

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/.

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