Boundary Atlas

ZIP code 98027: Issaquah, WA

ZIP code 98027 is in Issaquah (71% of residents), Mirrormont (12%) and East Renton Highlands (2.2%), in King County, Washington. 14% of its residents live outside city limits. It is in Washington's 8th congressional district. Its state senate districts are Legislative (Senate) District 5 (85%), Legislative (Senate) District 41 (15%) and Legislative (Senate) District 12 (0.3%); its state house districts are Legislative (House) District 5 (85%), Legislative (House) District 41 (15%) and Legislative (House) District 12 (0.3%).

29,089residents (2020 Census)
57.2 sq miland area
4cities and towns
1congressional district
47voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Issaquah71%
Mirrormont12%
East Renton Highlands2.2%
Hobart0.5%

CountyShare of ZIP residents
King County100%

Town or county subdivisionShare of ZIP residents
Issaquah Plateau CCD62%
Seattle East CCD36%
Tahoma-Maple Valley CCD1.5%
Snoqualmie Valley CCD0.3%

Congressional district

Congressional districtShare of ZIP residents
Washington's 8th congressional district (WA-08)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WA-08)Kim Schrier (D)202-225-7761100%
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 5)Victoria Hunt (Democratic)85%
State Senator (Legislative (Senate) District 41)Lisa Wellman (Democratic)15%
State Senator (Legislative (Senate) District 12)Keith Goehner (R)0.3%
State Representative (Legislative (House) District 5)Lisa Callan (Democratic)85%
State Representative (Legislative (House) District 5)Zach Hall (Democratic)85%
State Representative (Legislative (House) District 41)Janice Zahn (Democratic)15%
State Representative (Legislative (House) District 41)My-Linh Thai (Democratic)15%
State Representative (Legislative (House) District 12)Brian Burnett (R)0.3%
State Representative (Legislative (House) District 12)Mike Steele (R)0.3%

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).

Local government

State legislative districts

State senate districtShare of ZIP residents
Legislative (Senate) District 585%
Legislative (Senate) District 4115%
Legislative (Senate) District 120.3%

State house districtShare of ZIP residents
Legislative (House) District 585%
Legislative (House) District 4115%
Legislative (House) District 120.3%

Voting precincts

47 voting precincts overlap ZIP 98027. 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:98027")

ZIP 98027 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.