Ranking of Washington Counties By Percentage of Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the population of Washington (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 8.08%. Among all Washington counties, Adams County had the highest percentage of its population (aged 25 years and above) with an educational attainment of Less than High School Diploma (31.51%), followed by Yakima County (26.24%), and Franklin County (24.07%).

The chart below shows the top 10 Washington counties, and the table below shows the ranking of all Washington counties.

You can see similar information for other educational attainments.

You can also see similar information for other states and for the United States.