The Metropolitan King County Council, the legislative body of King County, Washington, consists of nine members elected by district. The county council adopts laws, sets policy, and holds final approval over the budget. Its current name and structure is the result of a merger of King County and the Municipality of Metropolitan Seattle, better known as Metro, which was a federated county-city structure responsible for water quality and public transportation.
Councilmembers
As a result of a county charter amendment passed by voters in the November 2008 elections, all elective offices of King County are officially nonpartisan. While officially nonpartisan, all current council members generally associate closely with one of the two major US political parties.
{| class="wikitable sortable"
!District
!Member
! colspan="2" |Party
!Took Office
|-
|District 1
|Rod Dembowski
| style="background:;" |
|Dem
|Mar 5, 2013
|-
|District 2
|Rhonda Lewis
| style="background:;" |
|Dem
|Dec 9, 2025
|-
|District 3
|Sarah Perry
| style="background:;" |
|Dem
|Jan 1, 2022
|-
|District 4
|Jorge Barón
| style="background:;" |
|Dem
|Jan 1, 2024
|-
|District 5
|Steffanie Fain
| style="background:;" |
|Dem
|Nov 25, 2025
|-
|District 6
|Claudia Balducci
| style="background:;" |
|Dem
|Jan 1, 2016
|-
|District 8
|Teresa Mosqueda
| style="background:;" |
|Dem
|Jan 1, 2024
|}
Meetings
The full county council meets weekly on Thursdays, except for the fifth Thursday in a month. Public comments are permitted at the fourth meeting of the month. Meetings are held in the County Council chambers, Room 1001, on the tenth floor of the King County Courthouse in Downtown Seattle.
Structure
The nine members of the council are elected by their district to four-year terms in nonpartisan contests. Councilmembers in even numbered districts are up for election in even years without a US Presidential election starting in 2026, while Councilmembers in odd districts are up for election in years with a US presidential election starting in 2028.
The King County Executive is not a member of the Council, and is a separately elected official. The Executive submits legislation to the Council for consideration. Each year in October, the Executive submits a proposed budget to the County Council for the operation of County government for the coming year. The Executive has veto power over ordinances passed by the Council. Washington Territory was established in March 1853 via a federal organic act, allowing Washington to define how counties would be governed. The territory decided that each county should elect three-member Boards of Commissioners, who passed county laws in the form of resolutions and discussed policy via proceedings.
In 1948 Washington State passed a law allowing for counties to change their governance structures. This allowed King County citizens to vote to change their commissioners board into the nine-member King County Council in 1968. They were the first county in Washington to adopt a home rule charter. The same vote also established the position of King County Executive. In the 2004 general election voters approved a charter amendment to reduce the size of the council from thirteen to nine, which went into effect January 1, 2006. With four fewer districts, the number of constituents per district rose from 138,000 residents to about 193,000.
Prior to 2009, councilmembers were elected on a partisan basis, and had to declare their political party unless they filed as an Independent. An independent candidate had to receive at least 20 percent of the vote in the primary election to qualify for the general election ballot. This changed upon the passage of Charter Amendment 8 by voters in 2008, which made all elections for county offices nonpartisan.
In 2022, Charter Amendment 1 was passed by King County voters with 69% in favor and 31% opposed. The passage of this amendment moved elections for King County Council from odd to even years and shortened the term of councilmembers elected in the 2023 and 2025 elections from the normal four-year term to a three-year term to accommodate the shift. Prior to the passage of this amendment, elections for councilmembers in even numbered districts were up for election in years preceding US presidential elections, while councilmembers in odd districts were up for election in years following US presidential elections.
Past councilmembers
:As of 2025
{| class="wikitable" style="text-align: center;"
!scope="col"|District
!scope="col"|Councilmember
!scope="col"|Political party