Boundary Atlas

ZIP code 98686: Barberton, WA

ZIP code 98686 is in Barberton (39% of residents), Salmon Creek (30%) and Mount Vista (27%), in Clark County, Washington. It is in Washington's 3rd congressional district. Its state senate district is Legislative (Senate) District 18; its state house district is Legislative (House) District 18.

21,462residents (2020 Census)
11.7 sq miland area
4cities and towns
1congressional district
22voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Barberton39%
Salmon Creek30%
Mount Vista27%
Five Corners<0.1%

CountyShare of ZIP residents
Clark County100%

Town or county subdivisionShare of ZIP residents
Vancouver CCD71%
Battle Ground CCD29%

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 18100%

State house districtShare of ZIP residents
Legislative (House) District 18100%

Voting precincts

22 voting precincts overlap ZIP 98686. 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:98686")

ZIP 98686 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.