Boundary Atlas

ZIP code 98642: Ridgefield, WA

ZIP code 98642 is in Ridgefield (44% of residents), Mount Vista (18%) and Duluth (7.1%), in Clark County, Washington. 31% of its residents live outside city limits. It is in Washington's 3rd congressional district. Its state senate districts are Legislative (Senate) District 20 (69%) and Legislative (Senate) District 18 (31%); its state house districts are Legislative (House) District 20 (69%) and Legislative (House) District 18 (31%).

23,685residents (2020 Census)
56.8 sq miland area
5cities and towns
1congressional district
31voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Ridgefield44%
Mount Vista18%
Duluth7.1%
La Center0.6%
Dollars Corner0.2%

CountyShare of ZIP residents
Clark County100%

Town or county subdivisionShare of ZIP residents
Ridgefield CCD58%
Battle Ground CCD32%
Vancouver CCD11%

Congressional district

Congressional districtShare of ZIP residents
Washington's 3rd congressional district (WA-03)100%

State legislative districts

State senate districtShare of ZIP residents
Legislative (Senate) District 2069%
Legislative (Senate) District 1831%

State house districtShare of ZIP residents
Legislative (House) District 2069%
Legislative (House) District 1831%

Voting precincts

31 voting precincts overlap ZIP 98642. 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:98642")

ZIP 98642 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.