Boundary Atlas

Winlock, Washington

Winlock is a city in Lewis County, Washington, with 1,861 residents in 2020. It is in Washington's 3rd congressional district. Its state senate district is Legislative (Senate) District 19; its state house district is Legislative (House) District 19.

1,861residents (2020 Census)
3.4 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Lewis County100%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WA-03)Marie Gluesenkamp Perez (D)202-225-3536100%
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 19)Jeff Wilson (R)100%
State Representative (Legislative (House) District 19)Jim Walsh (R)100%
State Representative (Legislative (House) District 19)Joel McEntire (R)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

State legislative districts

State senate districtShare of residents
Legislative (Senate) District 19100%

State house districtShare of residents
Legislative (House) District 19100%

ZIP codes

Percentages mark ZIPs only partly in Winlock: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Winlock's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:5379275")

Winlock here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.