Ranking of Arizona Counties By Population in 2024

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2024, the Population for Arizona was 7.58M. Among all Arizona counties, Maricopa County had the highest population (4.67M), followed by Pima County (1.08M), and Pinal County (513.86K).

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 2024
Maricopa
Pima
Pinal
Yavapai
Mohave
Yuma
Coconino
Cochise
Navajo
Apache
Ranking of Arizona Counties By Population in 2024
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Rank County Population
1 Maricopa County 4673096
2 Pima County 1080149
3 Pinal County 513862
4 Yavapai County 252013
5 Mohave County 226479
6 Yuma County 220310
7 Coconino County 145161
8 Cochise County 125773
9 Navajo County 109516
10 Apache County 64800
11 Gila County 54073
12 Santa Cruz County 50508
13 Graham County 40242
14 La Paz County 16992
15 Greenlee County 9410