Washington Voter Check
King County, Washington
Seattle - City Hall Park & King County Courthouse 01 — CC BY-SA 3.0, Joe Mabel · source

Question 1 of 8

What should I know about this county?

About King County

King County is a county located in the U.S. state of Washington. The population was 2,269,675 in the 2020 census, making it the most populous county in Washington, and the 13th-most populous in the United States. The county seat is Seattle, also the state's most populous city.

Description adapted from Wikipedia, CC BY-SA 4.0.

Question 2 of 8

What is this county like?

King County at a glance

County seat
Seattle
Population
2,269,675 (2020)
Land area
2,307 sq mi
Founded
1852

Question 3 of 8

Where do people live here?

Largest communities in King County

  1. Seattle county seat737,015
  2. Bellevue151,854
  3. Kent136,588
  4. Renton106,785
  5. Federal Way101,030

Question 4 of 8

How did this county come to be?

History of King County

When Europeans arrived in the region that would become King County, it was inhabited by several Coast Salish groups. Villages around the site that would become Seattle were primarily populated by the Duwamish people. The Snoqualmie Indian Tribe occupied the area that would become eastern King County. The Green River and White River were home for the Muckleshoot tribal groups. In the first winter after the Denny Party landed at Alki Point, the settlement at the point consisted of a few dozen settlers and over a thousand Native Americans. The local tribes provided the settlers with construction labor, domestic service, and help with subsistence activities. On December 22, 1852, the Oregon Territory legislature formed King County out of territory from within Thurston County. The county was named after Alabamian William R.

Adapted from Wikipedia, CC BY-SA 4.0.

Question 5 of 8

Am I registered here?

Start here

Confirm you're ready to vote in King County

  1. Step 1

    Run a guided check

    Scan Check Protect walks you through verifying your Washington registration and flags anything that needs fixing — free.

  2. Step 2

    Ask King County directly

    Your county election office handles registration, mail ballots, and polling places.

Question 6 of 8

Who runs elections in this county?

Official channels

King County election resources

Statewide tools and every Washington resource in one place: the Washington page at Scan Check Protect →

Question 7 of 8

Who are this county's neighbors?

Question 8 of 8

Who made this site?

Part of Washington Voter Check

This is the King County page of Washington Voter Check, a project of True the Vote, pointing Washington voters at the official tools that already exist — and at Scan Check Protect to verify your registration.

Where anything here differs from what King County or the Washington Secretary of State publishes, they are right and this page is not.