Ranking of Arizona Counties By Population with Unclassified Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.45M people in Arizona with Unclassified ancestry. Among all Arizona counties, Maricopa County had the highest population with Unclassified ancestry (921.26K), followed by Pima County (189.00K), and Pinal County (101.02K).
The chart and table below shows the top 10 counties with high number of people with Unclassified ancestry.
You can see similar information for other states and for other ancestry groups in Arizona.
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Related Topics: Arizona ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Arizona Counties By Population with Unclassified Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Maricopa County | 921261 |
| 2 | Pima County | 188995 |
| 3 | Pinal County | 101024 |
| 4 | Mohave County | 49776 |
| 5 | Yavapai County | 49283 |
| 6 | Yuma County | 27744 |
| 7 | Coconino County | 24492 |
| 8 | Cochise County | 23433 |
| 9 | Navajo County | 15915 |
| 10 | Graham County | 15115 |
| 11 | Gila County | 11890 |
| 12 | Santa Cruz County | 5354 |
| 13 | Apache County | 4372 |
| 14 | Greenlee County | 3503 |
| 15 | La Paz County | 2610 |