Ranking of Washington Counties By Percentage of Population with Sierra Leonean Ancestry in 2021

Based on the US Census ACS-5Yrs estimates, in 2021, there were 178 people in Washington with Sierra Leonean ancestry (0.002% of Washington population). Among all Washington counties, Snohomish County had the highest percentage of its population with Sierra Leonean ancestry (0.01%), followed by King County (0.003%), and Pierce County (0.003%).

The chart and table below shows the top 4 counties with high percentage of its population having Sierra Leonean ancestry.

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