Ranking of Arizona Counties By Total Population from Census 2020
Updated on February 7, 2023.
According to the data from the US 2020 Census, the most populated Arizona county as at April 2020 was Maricopa County (4.42M), followed by Pima County (1.04M), and Pinal County (425.26K).
The chart below shows the top 10 most populated counties, and the table below shows the ranking of all the counties in the state of Arizona.
You can also see the ranking of counties by population for other states as well as for the whole United States.
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Related Topics: Arizona Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Arizona Counties By Total Population from Census 2020
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| Rank | County | Population |
|---|---|---|
| 1 | Maricopa County | 4420568 |
| 2 | Pima County | 1043433 |
| 3 | Pinal County | 425264 |
| 4 | Yavapai County | 236209 |
| 5 | Mohave County | 213267 |
| 6 | Yuma County | 203881 |
| 7 | Coconino County | 145101 |
| 8 | Cochise County | 125447 |
| 9 | Navajo County | 106717 |
| 10 | Apache County | 66021 |
| 11 | Gila County | 53272 |
| 12 | Santa Cruz County | 47669 |
| 13 | Graham County | 38533 |
| 14 | La Paz County | 16557 |
| 15 | Greenlee County | 9563 |