Boundary Atlas

ZIP code 98433: Fort Lewis, WA

ZIP code 98433 is in Fort Lewis (68% of residents) and North Fort Lewis (29%), in Pierce County, Washington. It is in Washington's 10th congressional district. Its state senate district is Legislative (Senate) District 28; its state house district is Legislative (House) District 28.

20,814residents (2020 Census)
33.5 sq miland area
2cities and towns
1congressional district
7voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Fort Lewis68%
North Fort Lewis29%

CountyShare of ZIP residents
Pierce County100%

Town or county subdivisionShare of ZIP residents
Fort Lewis-DuPont CCD100%

Congressional district

Congressional districtShare of ZIP residents
Washington's 10th congressional district (WA-10)100%

State legislative districts

State senate districtShare of ZIP residents
Legislative (Senate) District 28100%

State house districtShare of ZIP residents
Legislative (House) District 28100%

Voting precincts

7 voting precincts overlap ZIP 98433. 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:98433")

ZIP 98433 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.