Arizona Counties by Population

Below are the 15 Arizona counties sorted by population from largest to smallest. The population data are from the 2022 Population Estimates Program and 2021 American Community Survey.

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Rank County Population
1 Maricopa County 4,551,524
2 Pima County 1,057,597
3 Pinal County 464,154
4 Yavapai County 246,191
5 Mohave County 220,816
6 Yuma County 207,842
7 Coconino County 144,060
8 Cochise County 125,663
9 Navajo County 108,650
10 Apache County 65,432
11 Gila County 53,922
12 Santa Cruz County 48,759
13 Graham County 38,779
14 La Paz County 16,506
15 Greenlee County 9,302

United States Census Bureau. B01001 SEX BY AGE, 2021 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 8 December 2022. http://www.census.gov/.

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2022. U.S. Census Bureau, Population Division. Web. May 2023. http://www.census.gov/.

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