Boundary Atlas

ZIP code 01550: Southbridge Town, MA

ZIP code 01550 is in Southbridge Town, in Worcester County, Massachusetts. It is in Massachusetts's 1st congressional district. Its state senate district is Worcester and Hampden District; its state house district is 6th Worcester District.

17,740residents (2020 Census)
20.2 sq miland area
1cities and towns
1congressional district
5voting precincts

See it on the mapAll of Massachusetts

City and county

City or townShare of ZIP residents
Southbridge Town100%

CountyShare of ZIP residents
Worcester County100%

Town or county subdivisionShare of ZIP residents
Southbridge Town city100%

Congressional district

Congressional districtShare of ZIP residents
Massachusetts's 1st congressional district (MA-01)100%

State legislative districts

State senate districtShare of ZIP residents
Worcester and Hampden District100%

State house districtShare of ZIP residents
6th Worcester District100%

Voting precincts

5 voting precincts overlap ZIP 01550. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

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:

related_geographies(id="us:zcta:01550")

ZIP 01550 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.