Brookline, Massachusetts
Brookline is a Census-designated place (an unincorporated community) in Norfolk County, Massachusetts, with 63,191 residents in 2020. It is in Massachusetts's 4th congressional district. It spans 4 state house districts. Its state senate district is Norfolk and Middlesex District.
County
| County | Share of residents |
|---|---|
| Norfolk County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Massachusetts's 4th congressional district (MA-04) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MA-04) | Jake Auchincloss (D) | 202-225-5931 | 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 (Norfolk and Middlesex District) | Cynthia Creem (Democratic) | 100% | |
| State Representative (15th Norfolk District) | Tommy Vitolo (Democratic) | 72% | |
| State Representative (12th Middlesex District) | Greg Schwartz (Democratic) | 16% | |
| State Representative (17th Suffolk District) | Kevin Honan (Democratic) | 6.1% | |
| State Representative (10th Suffolk District) | Billy MacGregor (Democratic) | 5.8% |
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
- Brookline laws: search for the Brookline, Massachusetts code of ordinances
- Norfolk County website: https://www.norfolkcounty.org/
- Norfolk County laws: search for the Norfolk County, Massachusetts code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| Norfolk and Middlesex District | 100% |
| State house district | Share of residents |
|---|---|
| 15th Norfolk District | 72% |
| 12th Middlesex District | 16% |
| 17th Suffolk District | 6.1% |
| 10th Suffolk District | 5.8% |
ZIP codes
Percentages mark ZIPs only partly in Brookline: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Brookline'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:2509210")
Brookline 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.