Ranking of Oregon Counties By Percentage of Population with Unclassified Ancestry in 2021

Based on the US Census ACS-5Yrs estimates, in 2021, there were 897.72K people in Oregon with Unclassified ancestry (21.34% of Oregon population). Among all Oregon counties, Crook County had the highest percentage of its population with Unclassified ancestry (32.87%), followed by Jefferson County (31.49%), and Baker County (30.72%).

The chart and table below shows the top 10 counties with high percentage of its population having Unclassified ancestry.

You can see similar information for other states and for other ancestry groups in Oregon.