Boundary Atlas

ZIP code 01803: Burlington, MA

ZIP code 01803 is in Burlington, in Middlesex County, Massachusetts. It is in Massachusetts's 6th congressional district. Its state senate district is Fourth Middlesex District; its state house district is 21st Middlesex District.

26,074residents (2020 Census)
11.3 sq miland area
1cities and towns
1congressional district
7voting precincts

See it on the mapAll of Massachusetts

City and county

City or townShare of ZIP residents
Burlington100%

CountyShare of ZIP residents
Middlesex County100%

Town or county subdivisionShare of ZIP residents
Burlington town100%

Congressional district

Congressional districtShare of ZIP residents
Massachusetts's 6th congressional district (MA-06)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MA-06)Seth Moulton (D)202-225-8020100%
U.S. SenatorEdward J. Markey (D)202-224-2742 · contact formstatewide
U.S. SenatorElizabeth Warren (D)202-224-4543 · contact formstatewide
State Senator (Fourth Middlesex District)Cindy Friedman (Democratic)100%
State Representative (21st Middlesex District)Ken Gordon (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
Fourth Middlesex District100%

State house districtShare of ZIP residents
21st Middlesex District100%

Voting precincts

7 voting precincts overlap ZIP 01803. Map them, with each precinct's share of the ZIP's residents.

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ZIP 01803 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.