Brockton, Massachusetts
Brockton is a city in Plymouth County, Massachusetts, with 105,643 residents in 2020. It is in Massachusetts's 8th congressional district. It spans 3 state house districts. Its state senate district is Second Plymouth and Norfolk District.
County
| County | Share of residents |
|---|---|
| Plymouth County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Massachusetts's 8th congressional district (MA-08) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Robert F. Sullivan | citywide | |
| U.S. Representative (MA-08) | Stephen F. Lynch (D) | 202-225-8273 | 100% |
| U.S. Senator | Edward J. Markey (D) | 202-224-2742 · contact form | statewide |
| U.S. Senator | Elizabeth Warren (D) | 202-224-4543 · contact form | statewide |
| State Senator (Second Plymouth and Norfolk District) | Mike Brady (Democratic) | 100% | |
| State Representative (10th Plymouth District) | Michelle DuBois (Democratic) | 43% | |
| State Representative (11th Plymouth District) | Rita Mendes (Democratic) | 40% | |
| State Representative (9th Plymouth District) | Bridget Plouffe (Democratic) | 17% |
From Wikidata (community-maintained); confirm on the city's website.
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); Mayors: Wikidata (CC0).
Local government
- Brockton laws: search for the Brockton, Massachusetts code of ordinances
- Plymouth County laws: search for the Plymouth County, Massachusetts code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| Second Plymouth and Norfolk District | 100% |
| State house district | Share of residents |
|---|---|
| 10th Plymouth District | 43% |
| 11th Plymouth District | 40% |
| 9th Plymouth District | 17% |
ZIP codes
Percentages mark ZIPs only partly in Brockton: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Brockton'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:2509000")
Brockton here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.