Arizona Citizen Population By County in 2018 (ACS-5Yrs)

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen population for Arizona was 6,408,360 and represented 92.25% of the total Arizona population.

Among all Arizona counties, Maricopa had the highest citizen population (3.88M), followed by Pima (951.00K), and Pinal (397.61K).

In terms of percentages, Apache had the highest percentage of its population being citizens (98.86%), followed by Navajo (98.55%), 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.