Boundary Atlas

ZIP code 98023: Federal Way, WA

ZIP code 98023 is in Federal Way, in King County, Washington. 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.

51,713residents (2020 Census)
10.3 sq miland area
1cities and towns
1congressional district
61voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Federal Way100%

CountyShare of ZIP residents
King County100%

Town or county subdivisionShare of ZIP residents
Federal Way-Auburn CCD100%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
MayorJim Ferrell253-835-2402100%
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 ZIP residents
Legislative (Senate) District 30100%

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

Voting precincts

61 voting precincts overlap ZIP 98023. Map them, with each precinct's share of the ZIP's residents.

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Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:98023")

ZIP 98023 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.