Washington Citizen Voting-age Population By County in 2019 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2019, the citizen voting-age population for Washington was 5,257,900 and represented 71.01% of the total Washington population.
Among all Washington counties, King had the highest citizen voting-age population (1.51M), followed by Pierce (636.26K), and Snohomish (562.42K).
In terms of percentages, Jefferson had the highest percentage of its population being citizens of voting-age (85.19%), followed by San Juan (83.29%), and Ferry (82.59%).
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 | 1506510 | 68.62 |
| Pierce | 636260 | 72.55 |
| Snohomish | 562415 | 70.41 |
| Spokane | 382450 | 75.66 |
| Clark | 338555 | 71.54 |
| Thurston | 211030 | 75.45 |
| Kitsap | 205545 | 77.31 |
| Whatcom | 167230 | 75.73 |
| Yakima | 145235 | 58.17 |
| Benton | 132775 | 67.22 |
| Skagit | 90780 | 72.27 |
| Cowlitz | 80260 | 75.16 |
| Island | 65615 | 79.18 |
| Clallam | 60880 | 80.75 |
| Lewis | 58825 | 75.28 |
| Grays Harbor | 56100 | 77.08 |
| Grant | 54950 | 57.54 |
| Chelan | 52760 | 69.21 |
| Mason | 49165 | 77.06 |
| Franklin | 47825 | 51.98 |
| Walla Walla | 43905 | 72.73 |
| Whitman | 37985 | 77.16 |
| Kittitas | 36765 | 80.11 |
| Stevens | 34525 | 77.32 |
| Okanogan | 28940 | 69.17 |
| Douglas | 26875 | 63.95 |
| Jefferson | 26650 | 85.19 |
| Asotin | 17505 | 78.08 |
| Pacific | 17290 | 79.71 |
| Klickitat | 16380 | 75.41 |
| San Juan | 13985 | 83.29 |
| Pend Oreille | 10625 | 79.44 |
| Adams | 9315 | 47.54 |
| Skamania | 9290 | 79.03 |
| Lincoln | 8235 | 77.87 |
| Ferry | 6260 | 82.59 |
| Wahkiakum | 3480 | 81.50 |
| Columbia | 3090 | 77.44 |
| Garfield | 1645 | 73.77 |
