Boundary Atlas

ZIP code 98003: Federal Way, WA

ZIP code 98003 is in Federal Way (89% of residents) and Lakeland South (11%), in King County, Washington. It is in Washington's 9th congressional district. Its state senate districts are Legislative (Senate) District 30 (100%) and Legislative (Senate) District 31 (0.2%); its state house districts are Legislative (House) District 30 (100%) and Legislative (House) District 31 (0.2%).

51,751residents (2020 Census)
11.5 sq miland area
3cities and towns
1congressional district
52voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Federal Way89%
Lakeland South11%
Milton0.2%

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 Ferrell253-835-240289%
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 Senator (Legislative (Senate) District 31)Phil Fortunato (R)0.2%
State Representative (Legislative (House) District 30)Jamila Taylor (Democratic)100%
State Representative (Legislative (House) District 30)Kristine Reeves (Democratic)100%
State Representative (Legislative (House) District 31)Drew Stokesbary (R)0.2%
State Representative (Legislative (House) District 31)Josh Penner (R)0.2%

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%
Legislative (Senate) District 310.2%

State house districtShare of ZIP residents
Legislative (House) District 30100%
Legislative (House) District 310.2%

Voting precincts

52 voting precincts overlap ZIP 98003. 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:98003")

ZIP 98003 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.