Boundary Atlas

ZIP code 06878: Riverside, CT

ZIP code 06878 is in Riverside (99% of residents), in Western Connecticut Planning Region, Connecticut. It is in Connecticut's 4th congressional district. Its state senate district is State Senate District 36; its state house districts are State House District 151 (70%) and State House District 150 (30%).

8,519residents (2020 Census)
2.4 sq miland area
2cities and towns
1congressional district
3voting precincts

See it on the mapAll of Connecticut

City and county

City or townShare of ZIP residents
Riverside99%
Old Greenwich0.5%

CountyShare of ZIP residents
Western Connecticut Planning Region100%

Town or county subdivisionShare of ZIP residents
Greenwich town100%

Congressional district

Congressional districtShare of ZIP residents
Connecticut's 4th congressional district (CT-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (CT-04)James A. Himes (D)202-225-5541100%
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 36)Ryan Fazio (R)100%
State Representative (State House District 151)Héctor Arzeno (Democratic)70%
State Representative (State House District 150)Steve Meskers (Democratic)30%

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 36100%

State house districtShare of ZIP residents
State House District 15170%
State House District 15030%

Voting precincts

3 voting precincts overlap ZIP 06878. Map them, with each precinct's share of the ZIP's residents.

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ZIP 06878 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.