ZIP code 98158: King County, WA
ZIP code 98158 is in King County, Washington, outside any city or Census-designated place. It is in Washington's 9th congressional district. Its state senate district is Legislative (Senate) District 33; its state house district is Legislative (House) District 33.
See it on the mapAll of Washington
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| King County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Seattle CCD | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Washington's 9th congressional district (WA-09) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (WA-09) | Adam Smith (D) | 202-225-8901 | 100% |
| U.S. Senator | Maria Cantwell (D) | 202-224-3441 · contact form | statewide |
| U.S. Senator | Patty Murray (D) | 202-224-2621 · contact form | statewide |
| State Senator (Legislative (Senate) District 33) | Tina Orwall (Democratic) | 100% | |
| State Representative (Legislative (House) District 33) | Edwin Obras (Democratic) | 100% | |
| State Representative (Legislative (House) District 33) | Mia Gregerson (Democratic) | 100% |
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
- King County website: https://kingcounty.gov
- King County laws: search for the King County, Washington code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| Legislative (Senate) District 33 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| Legislative (House) District 33 | 100% |
Voting precincts
1 voting precinct overlap ZIP 98158. 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:98158")
ZIP 98158 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.