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Massachusetts 4th Congressional District: Representatives, Map, and Key Facts

The Massachusetts 4th Congressional District is a U.S. House district in eastern Massachusetts, south of Boston and west of the Cape and Islands. It includes parts of Bristol, P...

Mara Ellison
Massachusetts 4th Congressional District: Representatives, Map, and Key Facts

Overview of the Massachusetts 4th Congressional District

The Massachusetts 4th Congressional District is a U.S. House district in eastern Massachusetts, south of Boston and west of the Cape and Islands. It includes parts of Bristol, Plymouth, and Barnstable counties, with cities such as New Bedford, Taunton, and portions of Fall River. The district is majority urban and suburban, with a diverse economy centered on maritime industries, higher education, healthcare, and advanced manufacturing. Voters in this district participate in open primaries and general elections using proportional party nominee processes, with general election winners serving two-year terms. The following profile explains current representation, historical trends, and structural factors that shape outcomes in this district.

Current Representative and Recent Election Context

Incumbent and Party Affiliation

As of 2025, the Massachusetts 4th Congressional District is represented by Jake Auchincloss, a member of the Democratic Party. Auchincloss first won election in 2020 and was reelected in 2022 and 2024, holding the seat for the Democratic caucus. His electoral performance has reflected the district’s partisan lean, while also demonstrating competitive dynamics in certain cycles. The following table summarizes key verified election details for the district.

Attribute Verified Detail Source Type
Representative Jake Auchincloss Official House roster/FEC
District Massachusetts 4th Congressional District Census/Redistricting files
First elected 2020 FEC/State election results
Party Democratic Congressional biographical directory
Next election November 2026 (midterm cycle) 2024 redistricting calendar

2024 General Election Results

In the 2024 general election, Jake Auchincloss secured reelection with a vote share in line with recent cycles, facing Republican and third-party challengers typical of the district’s competitive nomination landscape. Vote totals and margins are standardized in official canvass reports, and the outcome reinforced the district’s continued Democratic representation. Turnout and candidate fundraising are routinely documented by the Massachusetts Secretary of State and Federal Election Commission, providing transparent records of electoral performance.

District Geography and Jurisdictional Composition

The Massachusetts 4th Congressional District covers portions of three counties: Bristol, Plymouth, and Barnstable. Major municipalities include New Bedford, Fall River, Taunton, Attleboro, and parts of Brockton and Plymouth. The district encompasses a mix of urban cores, suburban neighborhoods, and rural coastal towns. Because redistricting can adjust boundaries while retaining the district’s core geographic identity, residents should verify current precinct assignments through the Massachusetts Secretary of State and the U.S. Census Bureau’s redistricting data. The following table summarizes the current jurisdictional footprint.

County Included Portions Key Municipalities
Bristol Partial New Bedford, Fall River, Attleboro
Plymouth Partial Taunton, portions of Plymouth
Barnstable Partial Parts of Bourne, coastal communities

Created after the 1930 census, the Massachusetts 4th Congressional District has evolved through multiple boundary changes while remaining a consistent Democratic-leaning seat. Notable representatives include long-serving members who shaped housing, maritime, and labor policy relevant to the district’s working and middle-class communities. More recently, the district has trended reliably Democratic in presidential and congressional contests, though state and local races remain sufficiently competitive to draw sustained candidate investment. Understanding this historical context helps explain current policy priorities and constituent expectations.

How the District is Used in Elections and Policy

Elected officials from the Massachusetts 4th Congressional District advocate for constituents on federal legislation, appropriations, and oversight matters. The district’s economic profile, including ports, higher education institutions, and healthcare systems, informs priorities such as infrastructure investment, workforce development, and coastal resilience. Residents engage with their representative through town halls, district offices in New Bedford and Taunton, and digital outreach. Because congressional lines can shift following decennial redistricting, it is useful to track official state resources to understand how district boundaries and political influence evolve over time.

How to Verify Your Representation and District Boundaries

Because redistricting can change which congressional district you belong to, you should confirm your current district using official sources. The Massachusetts Secretary of State provides precinct and legislative district lookups, while the U.S. Census Bureau’s redistricting data maps the 4th District as defined after the 2020 cycle. You can also visit the official House website for biographical and voting information about the current representative. These resources ensure that you have accurate, up-to-date information for voter registration, polling place identification, and outreach to your elected officials.

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