Boundary Atlas

ZIP code 06438: Haddam, CT

ZIP code 06438 is in Higganum (15% of residents), in Lower Connecticut River Valley Planning Region, Connecticut. 85% of its residents live outside city limits. It is in Connecticut's 2nd congressional district. Its state senate district is State Senate District 33; its state house district is State House District 36.

2,616residents (2020 Census)
14.0 sq miland area
1cities and towns
1congressional district
2voting precincts

See it on the mapAll of Connecticut

City and county

City or townShare of ZIP residents
Higganum15%

CountyShare of ZIP residents
Lower Connecticut River Valley Planning Region100%

Town or county subdivisionShare of ZIP residents
Haddam town100%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (CT-02)Joe Courtney (D)202-225-2076100%
U.S. SenatorChristopher Murphy (D)202-224-4041 · contact formstatewide
U.S. SenatorRichard Blumenthal (D)202-224-2823 · contact formstatewide
State Senator (State Senate District 33)Norm Needleman (Democratic)100%
State Representative (State House District 36)Renee Muir (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
State Senate District 33100%

State house districtShare of ZIP residents
State House District 36100%

Voting precincts

2 voting precincts overlap ZIP 06438. Map them, with each precinct's share of the ZIP's residents.

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ZIP 06438 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.