Boundary Atlas

ZIP code 98104: Seattle, WA

ZIP code 98104 is in Seattle, in King County, Washington. It is in Washington's 7th congressional district (51%) and Washington's 9th congressional district (49%). Its state senate districts are Legislative (Senate) District 37 (41%), Legislative (Senate) District 34 (30%) and Legislative (Senate) District 43 (29%); its state house districts are Legislative (House) District 37 (41%), Legislative (House) District 34 (30%) and Legislative (House) District 43 (29%).

16,157residents (2020 Census)
0.9 sq miland area
1cities and towns
2congressional districts
22voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Seattle100%

CountyShare of ZIP residents
King County100%

Town or county subdivisionShare of ZIP residents
Seattle CCD100%

Congressional districts

Congressional districtShare of ZIP residents
Washington's 7th congressional district (WA-07)51%
Washington's 9th congressional district (WA-09)49%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
MayorKatie B. Wilson206-684-4000100%
U.S. Representative (WA-07)Pramila Jayapal (D)202-225-310651%
U.S. Representative (WA-09)Adam Smith (D)202-225-890149%
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 37)Rebecca Saldaña (Democratic)41%
State Senator (Legislative (Senate) District 34)Emily Alvarado (Democratic)30%
State Senator (Legislative (Senate) District 43)Jamie Pedersen (Democratic)29%
State Representative (Legislative (House) District 37)Chipalo Street (Democratic)41%
State Representative (Legislative (House) District 37)Sharon Tomiko Santos (Democratic)41%
State Representative (Legislative (House) District 34)Brianna Thomas (Democratic)30%
State Representative (Legislative (House) District 34)Joe Fitzgibbon (Democratic)30%
State Representative (Legislative (House) District 43)Nicole Macri (Democratic)29%
State Representative (Legislative (House) District 43)Shaun Scott (Democratic)29%

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 3741%
Legislative (Senate) District 3430%
Legislative (Senate) District 4329%

State house districtShare of ZIP residents
Legislative (House) District 3741%
Legislative (House) District 3430%
Legislative (House) District 4329%

Voting precincts

22 voting precincts overlap ZIP 98104. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

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:98104")

ZIP 98104 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.