Boundary Atlas

Granby, Massachusetts

Granby is a Census-designated place (an unincorporated community) in Hampshire County, Massachusetts, with 1,306 residents in 2020. It is in Massachusetts's 1st congressional district. It spans 2 state house districts. Its state senate district is Hampden-Hampshire-Worcester District.

1,306residents (2020 Census)
3.5 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Hampshire County100%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MA-01)Richard E. Neal (D)202-225-5601100%
U.S. SenatorEdward J. Markey (D)202-224-2742 · contact formstatewide
U.S. SenatorElizabeth Warren (D)202-224-4543 · contact formstatewide
State Representative (3rd Hampshire District)Mindy Domb (Democratic)413-335-136291%
State Representative (2nd Hampshire District)Homar Gomez (Democratic)9.4%

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of residents
Hampden-Hampshire-Worcester District100%

State house districtShare of residents
3rd Hampshire District91%
2nd Hampshire District9.4%

ZIP codes

Percentages mark ZIPs only partly in Granby: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Granby's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:2526500")

Granby here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.