Boundary Atlas

Ocean Bluff-Brant Rock, Massachusetts

Ocean Bluff-Brant Rock is a Census-designated place (an unincorporated community) in Plymouth County, Massachusetts, with 4,744 residents in 2020. It is in Massachusetts's 9th congressional district. Its state senate district is First Plymouth and Norfolk District; its state house district is 4th Plymouth District.

4,744residents (2020 Census)
2.2 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Plymouth County100%

Congressional district

Congressional districtShare of residents
Massachusetts's 9th congressional district (MA-09)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MA-09)William R. Keating (D)202-225-3111100%
U.S. SenatorEdward J. Markey (D)202-224-2742 · contact formstatewide
U.S. SenatorElizabeth Warren (D)202-224-4543 · contact formstatewide
State Senator (First Plymouth and Norfolk District)Patrick O'Connor (R)100%
State Representative (4th Plymouth District)Patrick Kearney (Democratic)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 residents
First Plymouth and Norfolk District100%

State house districtShare of residents
4th Plymouth District100%

ZIP codes

Percentages mark ZIPs only partly in Ocean Bluff-Brant Rock: the share of that ZIP's residents living in it.

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Your agent can get Ocean Bluff-Brant Rock'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:

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Ocean Bluff-Brant Rock 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.