Boundary Atlas

ZIP code 02779: Berkley, MA

ZIP code 02779 is in Bristol County, Massachusetts, outside any city or Census-designated place. It is in Massachusetts's 4th congressional district. Its state senate district is Third Bristol and Plymouth District; its state house district is 12th Bristol District.

6,764residents (2020 Census)
16.5 sq miland area
0cities and towns
1congressional district
2voting precincts

See it on the mapAll of Massachusetts

City and county

Outside any city or Census-designated place.


CountyShare of ZIP residents
Bristol County100%

Town or county subdivisionShare of ZIP residents
Berkley town100%

Congressional district

Congressional districtShare of ZIP residents
Massachusetts's 4th congressional district (MA-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MA-04)Jake Auchincloss (D)202-225-5931100%
U.S. SenatorEdward J. Markey (D)202-224-2742 · contact formstatewide
U.S. SenatorElizabeth Warren (D)202-224-4543 · contact formstatewide
State Senator (Third Bristol and Plymouth District)Kelly Dooner (R)100%
State Representative (12th Bristol District)Norm Orrall (R)100%

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 ZIP residents
Third Bristol and Plymouth District100%

State house districtShare of ZIP residents
12th Bristol District100%

Voting precincts

2 voting precincts overlap ZIP 02779. 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:02779")

ZIP 02779 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.