Boundary Atlas

ZIP code 01331: Athol, MA

ZIP code 01331 is in Athol (62% of residents), in Worcester County (100%) and Franklin County (0.1%), Massachusetts. 38% of its residents live outside city limits. It is in Massachusetts's 2nd congressional district. Its state senate districts are Hampshire-Franklin-Worcester District (87%) and Worcester and Hampshire District (13%); its state house districts are 2nd Franklin District (100%) and 7th Hampden District (0.1%).

13,656residents (2020 Census)
54.2 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
Athol62%

CountyShare of ZIP residents
Worcester County100%
Franklin County0.1%

Town or county subdivisionShare of ZIP residents
Athol town87%
Phillipston town13%
New Salem town0.1%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
Hampshire-Franklin-Worcester District87%
Worcester and Hampshire District13%

State house districtShare of ZIP residents
2nd Franklin District100%
7th Hampden District0.1%

Voting precincts

5 voting precincts overlap ZIP 01331. 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:01331")

ZIP 01331 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.