Boundary Atlas

Chain Lake, Washington

Chain Lake is a Census-designated place (an unincorporated community) in Snohomish County, Washington, with 4,806 residents in 2020. It is in Washington's 1st congressional district. It spans 2 state senate and 2 state house districts.

4,806residents (2020 Census)
10.9 sq miland area
2ZIP codes
1congressional district

County

CountyShare of residents
Snohomish County100%

Congressional district

Congressional districtShare of residents
Washington's 1st congressional district (WA-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WA-01)Suzan K. DelBene (D)202-225-6311100%
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 44)John Lovick (Democratic)82%
State Senator (Legislative (Senate) District 12)Keith Goehner (R)18%
State Representative (Legislative (House) District 44)April Berg (Democratic)82%
State Representative (Legislative (House) District 44)Brandy Donaghy (Democratic)82%
State Representative (Legislative (House) District 12)Brian Burnett (R)18%
State Representative (Legislative (House) District 12)Mike Steele (R)18%

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 4482%
Legislative (Senate) District 1218%

State house districtShare of residents
Legislative (House) District 4482%
Legislative (House) District 1218%

ZIP codes

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

Get this in your AI agent

Your agent can get Chain Lake'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:5311325")

Chain Lake here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.