Arizona Counties By Population

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  1. Arizona
  2. Counties by Population
Arizona Counties by Population (2026)

by Kristen Carney

Updated: February 9, 2026

The most populous counties in Arizona are Maricopa County with 4,559,748, Pima County at 1,060,490, Pinal County with 469,006, Yavapai County at 245,480, and Mohave County with 220,517. You can get the most current Census population data for all 15 Arizona counties, sorted from the most populous counties in Arizona to the least, according to the 2024 American Community Survey.

Sure, you can copy this list right into your favorite spreadsheet tool. Or save yourself formatting headaches and grab the latest Arizona counties population data as a ready-to-use Excel™ file below. It's time to stop searching and start digging into data!

Download the newest population data for Arizona counties

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Rank County Population
1 Maricopa County 4,559,748
2 Pima County 1,060,490
3 Pinal County 469,006
4 Yavapai County 245,480
5 Mohave County 220,517
6 Yuma County 211,741
7 Coconino County 144,508
8 Cochise County 125,566
9 Navajo County 108,415
10 Apache County 65,341
11 Gila County 53,795
12 Santa Cruz County 48,926
13 Graham County 39,232
14 La Paz County 16,664
15 Greenlee County 9,409

United States Census Bureau. B01001 SEX BY AGE, 2024 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. January 29, 2026. http://www.census.gov/.

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