Voter Registration and Voter Turnout

85% of King County eligible voters are registered; King County’s eligible voter registration rates vary considerably across King County.


Voter Registration: This map shows, by census tract, adults age 18 and older who are registered to vote as a percentage of the total eligible voting population. In 2016, 85% of King County’s eligible voting population were registered.

(click on the image to see interactive map)


Click on a census tract to see numbers and estimated percentages of registered voters over the past 4 years. You can search for addresses and can click the green button to display additional information (such as demographics and legislative districts) in the map and popup window.

  • King County regions: Many census tracts with the highest percentage of registered voters (91% or more) are located in the East Region and North Seattle.

  • The 9h Congressional District (including Federal Way, Des Moines, SeaTac, Kent, Renton, Tukwila, Newcastle, Mercer Island, Bellevue, and much of South Seattle east of I-5), contains many census tracts with lower-than-average voter registration.

  • Sample: information available for Census tract 022604 (Redmond) in 2016

    • 1st Congressional District

    • 87% of eligible adults were registered, for a total of 3,117 registered voters

    • Median household income was $91,970

    • 13.29% of residents had incomes below 200% of the Federal Poverty Level ($48,678 for a household of 2 adults and 2 children)

    • 25.88% of residents were people of color

    • 23.1% of residents were foreign born

    • 1.8% of residents spoke Spanish; 5.8% spoke Chinese

Voter Turnout: This map shows, by year and precinct, the percent of registered King County voters who participated in elections. 82% of registered King County voters participated in the 2016 general election.

Click on a precinct to see the precinct identifier; % voter turnout; number of ballots counted; number of registered voters; and numbers for the legislative, congressional, and county council districts.

  • Most of the precincts with 70% or lower voter turnout were in South Seattle and South King County.

  • Sample: In Burien’s precinct BUR 34-0295, 431 ballots were counted for 525 registered voters, resulting in an 82% voter turnout rate. This precinct is in the 34th Washington State legislative district, 7th Congressional district, and King County Council district 8.

For information about civic activity including interacting with neighbors, participating in community organizations, attending public meetings, and more, visit Seattle City Club’s Civic Health Index. For current and past election results, visit King County’s election results page.


Notes & Sources

Source: King County Elections: