Boundary Atlas

ZIP code 98230: Birch Bay, WA

ZIP code 98230 is in Birch Bay (54% of residents) and Blaine (31%), in Whatcom County, Washington. 15% of its residents live outside city limits. It is in Washington's 2nd congressional district. Its state senate district is Legislative (Senate) District 42; its state house district is Legislative (House) District 42.

18,754residents (2020 Census)
42.5 sq miland area
2cities and towns
1congressional district
23voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Birch Bay54%
Blaine31%

CountyShare of ZIP residents
Whatcom County100%

Town or county subdivisionShare of ZIP residents
Blaine CCD94%
Ferndale CCD4.0%
Lynden CCD1.6%

Congressional district

Congressional districtShare of ZIP residents
Washington's 2nd congressional district (WA-02)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WA-02)Rick Larsen (D)202-225-2605100%
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 42)Sharon Shewmake (Democratic)100%
State Representative (Legislative (House) District 42)Alicia Rule (Democratic)100%
State Representative (Legislative (House) District 42)Joe Timmons (Democratic)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 ZIP residents
Legislative (Senate) District 42100%

State house districtShare of ZIP residents
Legislative (House) District 42100%

Voting precincts

23 voting precincts overlap ZIP 98230. Map them, with each precinct's share of the ZIP's residents.

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ZIP 98230 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.