Boundary Atlas

ZIP code 06415: Colchester, CT

ZIP code 06415 is in Colchester (29% of residents), in Southeastern Connecticut Planning Region (95%) and Lower Connecticut River Valley Planning Region (4.5%), Connecticut. 71% 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 districts are State House District 48 (95%) and State House District 34 (4.5%).

16,300residents (2020 Census)
56.0 sq miland area
1cities and towns
1congressional district
5voting precincts

See it on the mapAll of Connecticut

City and county

City or townShare of ZIP residents
Colchester29%

CountyShare of ZIP residents
Southeastern Connecticut Planning Region95%
Lower Connecticut River Valley Planning Region4.5%

Town or county subdivisionShare of ZIP residents
Colchester town95%
East Haddam town4.5%

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 48)Mark DeCaprio (R)95%
State Representative (State House District 34)Irene Haines (R)4.5%

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 4895%
State House District 344.5%

Voting precincts

5 voting precincts overlap ZIP 06415. 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:

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ZIP 06415 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.