Ranking of Washington Counties By Voting-age Population Percentage from Census 2020
Updated on August 22, 2023.
According to the data from the US 2020 Census, as at April 2020, Jefferson County had the highest voting-age population percentage in Washington (87.79%), followed by San Juan County (85.78%), and Whitman County (84.47%).
The chart below shows the top 10 counties with high voting-age population percentage, and the table below shows the ranking of all Washington counties based on the percentage of the population that were in the voting-age (18 years and over) group.
You can also see the ranking of counties by population for other states as well as for the whole United States.
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Related Topics: Washington Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Washington Counties By Voting-age Population Percentage from Census 2020
Rank | County | % of County Voting-age Population |
|---|---|---|
| 1 | Jefferson County | 87.79 |
| 2 | San Juan County | 85.78 |
| 3 | Whitman County | 84.47 |
| 4 | Clallam County | 83.71 |
| 5 | Columbia County | 82.92 |
| 6 | Pacific County | 82.85 |
| 7 | Wahkiakum County | 82.66 |
| 8 | Island County | 81.95 |
| 9 | Kittitas County | 81.46 |
| 10 | Skamania County | 81.41 |
| 11 | Ferry County | 81.23 |
| 12 | Pend Oreille County | 81.17 |
| 13 | Mason County | 81.04 |
| 14 | Klickitat County | 80.47 |
| 15 | Whatcom County | 80.44 |
| 16 | Grays Harbor County | 80.03 |
| 17 | King County | 79.90 |
| 18 | Kitsap County | 79.66 |
| 19 | Asotin County | 79.56 |
| 20 | Walla Walla County | 79.25 |
| 21 | Lincoln County | 78.91 |
| 22 | Stevens County | 78.82 |
| 23 | Garfield County | 78.70 |
| 24 | Skagit County | 78.53 |
| 25 | Thurston County | 78.39 |
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