Boundary Atlas

ZIP code 01603: Worcester, MA

ZIP code 01603 is in Worcester, in Worcester County, Massachusetts. It is in Massachusetts's 2nd congressional district. Its state senate districts are Worcester and Hampshire District (45%), First Worcester District (42%) and Second Worcester District (13%); its state house districts are 17th Worcester District (91%), 16th Worcester District (8.9%) and 7th Worcester District (0.1%).

22,417residents (2020 Census)
4.5 sq miland area
1cities and towns
1congressional district
11voting precincts

See it on the mapAll of Massachusetts

City and county

City or townShare of ZIP residents
Worcester100%

CountyShare of ZIP residents
Worcester County100%

Town or county subdivisionShare of ZIP residents
Worcester city100%
Auburn town0.1%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
MayorJoseph Petty100%
U.S. Representative (MA-02)James P. McGovern (D)202-225-6101100%
U.S. SenatorEdward J. Markey (D)202-224-2742 · contact formstatewide
U.S. SenatorElizabeth Warren (D)202-224-4543 · contact formstatewide
State Senator (Worcester and Hampshire District)Peter Durant (R)45%
State Senator (First Worcester District)Robyn Kennedy (Democratic)42%
State Senator (Second Worcester District)Mike Moore (Democratic)508-757-0323 ext. 1313%
State Representative (17th Worcester District)David LeBoeuf (Democratic)91%
State Representative (16th Worcester District)Dan Donahue (Democratic)8.9%
State Representative (7th Worcester District)Paul Frost (R)0.1%

From Wikidata (community-maintained); confirm on the city's website.

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); Mayors: Wikidata (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
Worcester and Hampshire District45%
First Worcester District42%
Second Worcester District13%

State house districtShare of ZIP residents
17th Worcester District91%
16th Worcester District8.9%
7th Worcester District0.1%

Voting precincts

11 voting precincts overlap ZIP 01603. Map them, with each precinct's share of the ZIP's residents.

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ZIP 01603 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.