Boundary Atlas

Federal Way, Washington

Federal Way is a city in King County, Washington, with 101,039 residents in 2020. It is in Washington's 9th congressional district. Its state senate district is Legislative (Senate) District 30; its state house district is Legislative (House) District 30.

101,039residents (2020 Census)
22.3 sq miland area
5ZIP 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
MayorJim Ferrell253-835-2402citywide
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 30)Claire Wilson (Democratic)100%
State Representative (Legislative (House) District 30)Jamila Taylor (Democratic)100%
State Representative (Legislative (House) District 30)Kristine Reeves (Democratic)100%

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

Local government

State legislative districts

State senate districtShare of residents
Legislative (Senate) District 30100%

State house districtShare of residents
Legislative (House) District 30100%

ZIP codes

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

Get this in your AI agent

Your agent can get Federal Way'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:5323515")

Federal Way 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.