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

Updated on September 5, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Washington Some Other Race Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 37.53%. Among all Washington counties, Klickitat County had the highest percentage of its Some Other Race Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma (66.51%), followed by Columbia County (64.46%), and Grays Harbor County (59.70%).

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, and for other races and ethnicities.

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

Ranking of Washington Counties By Percentage of Some Other Race Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Klickitat County
Columbia County
Grays Harbor County
Adams County
Douglas County
Okanogan County
Chelan County
Franklin County
Grant County
Yakima County
Ranking of Washington Counties By Percentage of Some Other Race Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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Rank County Percentage of Population (Aged 25yrs+) (%)
1 Klickitat County 66.51
2 Columbia County 64.46
3 Grays Harbor County 59.70
4 Adams County 59.49
5 Douglas County 58.15
6 Okanogan County 55.48
7 Chelan County 49.59
8 Franklin County 49.57
9 Grant County 48.85
10 Yakima County 46.76
11 Lewis County 46.55
12 Walla Walla County 46.07
13 Mason County 43.93
14 San Juan County 42.35
15 Lincoln County 40.91
16 Skagit County 39.66
17 Clallam County 39.64
18 Benton County 39.38
19 Kittitas County 37.63
20 King County 35.11
21 Whatcom County 31.96
22 Pacific County 31.58
23 Snohomish County 30.44
24 Cowlitz County 29.87
25 Clark County 28.72
26 Pierce County 26.38
27 Thurston County 26.05
28 Pend Oreille County 25.15
29 Ferry County 25.00
30 Whitman County 24.90
31 Asotin County 17.30
32 Spokane County 15.76
33 Kitsap County 13.72
34 Island County 11.12
35 Stevens County 7.91
36 Skamania County 6.12
37 Jefferson County 5.35
38 Wahkiakum County 0.00