Boundary Atlas

ZIP code 01945: Marblehead, MA

ZIP code 01945 is in Marblehead, in Essex County, Massachusetts. It is in Massachusetts's 6th congressional district. Its state senate districts are Third Essex District (100%) and Second Essex District (0.1%); its state house districts are 8th Essex District (100%) and 7th Essex District (0.1%).

20,462residents (2020 Census)
4.4 sq miland area
2cities and towns
1congressional district
8voting precincts

See it on the mapAll of Massachusetts

City and county

City or townShare of ZIP residents
Marblehead100%
Salem0.1%

CountyShare of ZIP residents
Essex County100%

Town or county subdivisionShare of ZIP residents
Marblehead town100%
Salem city0.1%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
Third Essex District100%
Second Essex District0.1%

State house districtShare of ZIP residents
8th Essex District100%
7th Essex District0.1%

Voting precincts

8 voting precincts overlap ZIP 01945. 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:

related_geographies(id="us:zcta:01945")

ZIP 01945 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.