Boundary Atlas

Tukwila, Washington

Tukwila is a city in King County, Washington, with 21,798 residents in 2020. It is in Washington's 9th congressional district. Its state senate district is Legislative (Senate) District 11; its state house district is Legislative (House) District 11.

21,798residents (2020 Census)
9.2 sq miland area
3ZIP codes
1congressional district

County

CountyShare of residents
King County100%

Congressional district

Congressional districtShare of residents
Washington's 9th congressional district (WA-09)100%

Elected officials

OfficeMemberContactShare of residents
MayorThomas McLeodcitywide
U.S. Representative (WA-09)Adam Smith (D)202-225-8901100%
U.S. SenatorMaria Cantwell (D)202-224-3441 · contact formstatewide
U.S. SenatorPatty Murray (D)202-224-2621 · contact formstatewide
State Senator (Legislative (Senate) District 11)Bob Hasegawa (Democratic)100%
State Representative (Legislative (House) District 11)David Hackney (Democratic)100%
State Representative (Legislative (House) District 11)Steve Bergquist (Democratic)100%

From Wikidata (community-maintained); confirm on the city's website.

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0); Mayors: Wikidata (CC0).

Local government

State legislative districts

State senate districtShare of residents
Legislative (Senate) District 11100%

State house districtShare of residents
Legislative (House) District 11100%

ZIP codes

Percentages mark ZIPs only partly in Tukwila: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Tukwila's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:5372625")

Tukwila here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.