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

Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.49M people in Washington with Unclassified ancestry (19.58% of Washington population). Among all Washington counties, Wahkiakum County had the highest percentage of its population with Unclassified ancestry (37.14%), followed by Asotin County (31.82%), and Garfield County (27.74%).

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 Washington.