Washington Citizen Voting-age Population By County in 2010 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2010, the citizen voting-age population for Washington was 4,593,030 and represented 70.00% of the total Washington population.
Among all Washington counties, King had the highest citizen voting-age population (1.30M), followed by Pierce (554.98K), and Snohomish (478.44K).
In terms of percentages, Jefferson had the highest percentage of its population being citizens of voting-age (83.45%), followed by San Juan (80.10%), and Clallam (79.34%).
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 | 1299290 | 69.14 |
| Pierce | 554975 | 70.91 |
| Snohomish | 478440 | 68.92 |
| Spokane | 342060 | 74.16 |
| Clark | 284190 | 68.51 |
| Kitsap | 183875 | 74.34 |
| Thurston | 180595 | 74.15 |
| Whatcom | 144535 | 73.74 |
| Yakima | 136075 | 57.53 |
| Benton | 111425 | 66.69 |
| Skagit | 80625 | 69.97 |
| Cowlitz | 73145 | 72.25 |
| Island | 60290 | 76.67 |
| Clallam | 56045 | 79.34 |
| Lewis | 54690 | 73.26 |
| Grays Harbor | 53625 | 74.39 |
| Grant | 49280 | 57.88 |
| Chelan | 48095 | 67.74 |
| Mason | 45135 | 76.13 |
| Walla Walla | 40460 | 70.26 |
| Whitman | 34430 | 78.71 |
| Franklin | 33570 | 47.06 |
| Stevens | 32045 | 74.23 |
| Kittitas | 31165 | 78.17 |
| Okanogan | 28350 | 70.45 |
| Jefferson | 24680 | 83.45 |
| Douglas | 22935 | 61.72 |
| Asotin | 16485 | 77.16 |
| Pacific | 16480 | 77.77 |
| Klickitat | 14760 | 73.60 |
| San Juan | 12455 | 80.10 |
| Pend Oreille | 9875 | 76.52 |
| Adams | 8990 | 50.27 |
| Skamania | 8250 | 75.90 |
| Lincoln | 7990 | 75.84 |
| Ferry | 5715 | 76.15 |
| Columbia | 3120 | 78.89 |
| Wahkiakum | 3105 | 78.02 |
| Garfield | 1775 | 79.24 |
