Arizona Citizen Population By County in 2015 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2015, the citizen population for Arizona was 6,100,105 and represented 91.84% of the total Arizona population.

Among all Arizona counties, Maricopa had the highest citizen population (3.65M), followed by Pima (929.39K), and Pinal (364.95K).

In terms of percentages, Apache had the highest percentage of its population being citizens (98.60%), followed by Navajo (98.49%), and Gila (97.88%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.

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Arizona Citizen Population By County in 2015
Arizona Citizen Population By County in 2015
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County Citizen Population % of County Population
Maricopa 3645010 90.71
Pima 929385 93.08
Pinal 364950 93.63
Yavapai 208075 96.33
Mohave 195170 95.97
Yuma 170735 84.11
Coconino 132105 96.64
Cochise 122155 94.22
Navajo 106025 98.49
Apache 71115 98.60
Gila 52040 97.88
Santa Cruz 39895 84.75
Graham 36165 96.69
La Paz 18510 91.03
Greenlee 8760 97.06