Washington Citizen Voting-age Population By County in 2023 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2023, the citizen voting-age population for Washington was 5,516,700 and represented 71.27% of the total Washington population.
Among all Washington counties, King had the highest citizen voting-age population (1.55M), followed by Pierce (671.37K), and Snohomish (580.09K).
In terms of percentages, Jefferson had the highest percentage of its population being citizens of voting-age (86.18%), followed by San Juan (83.90%), and Ferry (82.25%).
The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.
You can see similar information for other states and by state for the United States.
| County | Citizen Voting-age Population | % of County Population |
|---|---|---|
| King | 1547795 | 68.40 |
| Pierce | 671365 | 72.65 |
| Snohomish | 580085 | 69.50 |
| Spokane | 415425 | 76.32 |
| Clark | 371155 | 72.70 |
| Thurston | 224300 | 75.61 |
| Kitsap | 214175 | 77.44 |
| Whatcom | 175605 | 76.88 |
| Yakima | 151165 | 58.91 |
| Benton | 142015 | 67.55 |
| Skagit | 96485 | 73.99 |
| Cowlitz | 84000 | 75.31 |
| Island | 69350 | 79.95 |
| Clallam | 63740 | 82.14 |
| Lewis | 63365 | 75.50 |
| Grant | 59945 | 59.69 |
| Grays Harbor | 58720 | 76.86 |
| Chelan | 55050 | 69.23 |
| Franklin | 54155 | 55.44 |
| Mason | 51210 | 76.47 |
| Walla Walla | 46565 | 74.98 |
| Whitman | 37370 | 79.44 |
| Stevens | 37105 | 78.17 |
| Kittitas | 36035 | 80.55 |
| Okanogan | 29430 | 68.75 |
| Jefferson | 28710 | 86.18 |
| Douglas | 27565 | 63.03 |
| Pacific | 19500 | 82.11 |
| Asotin | 17715 | 79.00 |
| Klickitat | 17670 | 76.56 |
| San Juan | 15325 | 83.90 |
| Pend Oreille | 11050 | 80.01 |
| Adams | 10160 | 49.11 |
| Skamania | 9935 | 80.94 |
| Lincoln | 8700 | 77.20 |
| Ferry | 6025 | 82.25 |
| Wahkiakum | 3635 | 79.45 |
| Columbia | 3215 | 80.48 |
| Garfield | 1890 | 81.29 |
