Boundary Atlas

ZIP code 01966: Rockport, MA

ZIP code 01966 is in Rockport (72% of residents), in Essex County, Massachusetts. 28% of its residents live outside city limits. It is in Massachusetts's 6th congressional district. Its state senate district is First Essex and Middlesex District; its state house district is 5th Essex District.

6,992residents (2020 Census)
7.0 sq miland area
1cities and towns
1congressional district
3voting precincts

See it on the mapAll of Massachusetts

City and county

City or townShare of ZIP residents
Rockport72%

CountyShare of ZIP residents
Essex County100%

Town or county subdivisionShare of ZIP residents
Rockport town100%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
First Essex and Middlesex District100%

State house districtShare of ZIP residents
5th Essex District100%

Voting precincts

3 voting precincts overlap ZIP 01966. 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:01966")

ZIP 01966 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.