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

Based on the US Census ACS-5Yrs estimates, in 2021, there were 73.65K people in Washington with British ancestry (0.97% of Washington population). Among all Washington counties, Columbia County had the highest percentage of its population with British ancestry (2.39%), followed by Ferry County (1.99%), and Jefferson County (1.76%).

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

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