Ranking of Arizona Counties By Population in 2015

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2015, the Population for Arizona was 6.83M. Among all Arizona counties, Maricopa County had the highest population (4.17M), followed by Pima County (1.01M), and Pinal County (405.92K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Arizona counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Arizona Counties By Population in 2015
Maricopa
4.17M
Pima
1.01M
Pinal
405.92K
Yavapai
221.02K
Yuma
205.19K
Mohave
204.89K
Coconino
139.10K
Cochise
126.59K
Navajo
107.70K
Apache
71.03K
Ranking of Arizona Counties By Population in 2015
Rank
County
Population
1 Maricopa County 4,174,423
2 Pima County 1,009,490
3 Pinal County 405,922
4 Yavapai County 221,019
5 Yuma County 205,187
6 Mohave County 204,890
7 Coconino County 139,100
8 Cochise County 126,594
9 Navajo County 107,695
10 Apache County 71,026
11 Gila County 53,020
12 Santa Cruz County 46,493
13 Graham County 37,888
14 La Paz County 20,476
15 Greenlee County 9,587
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