Boundary Atlas

ZIP code 01237: Lanesborough, MA

ZIP code 01237 is in Berkshire County, Massachusetts, outside any city or Census-designated place. It is in Massachusetts's 1st congressional district. Its state senate district is Berkshire-Hampden-Franklin-Hampshire District; its state house district is 1st Berkshire District.

2,365residents (2020 Census)
49.3 sq miland area
0cities and towns
1congressional district
3voting precincts

See it on the mapAll of Massachusetts

City and county

Outside any city or Census-designated place.


CountyShare of ZIP residents
Berkshire County100%

Town or county subdivisionShare of ZIP residents
Lanesborough town80%
New Ashford town11%
Hancock town9.4%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
Berkshire-Hampden-Franklin-Hampshire District100%

State house districtShare of ZIP residents
1st Berkshire District100%

Voting precincts

3 voting precincts overlap ZIP 01237. 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:01237")

ZIP 01237 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.