Massachusetts's 4th Congressional District is represented by Jake Auchincloss (Democrat), who has held the seat since 2021. Auchincloss has an overall VoteSee report card grade of F, voted in 96% of roll-call votes on bills this Congress, and votes with the Democratic majority 97% of the time. The district includes Fall River, Newton, and Brookline. It takes in all or part of 5 counties; the most populous parts are in Bristol County and Norfolk County. About 787,000 people live in the district, and the median household income is $116,055.
Jake Auchincloss (Democrat) has represented Massachusetts's 4th Congressional District since 2021.
See Jake Auchincloss's full voting record and issue positions →
Winner: Jake Auchincloss.
Incumbent Jake Auchincloss is running for re-election. 2 candidates were on the Nov 3, 2026 ballot.
Polls: No public polls
Source: American Community Survey 2020–2024 5-year estimates, 119th Congress boundaries.
Members of Congress who previously represented Massachusetts's 4th Congressional District. District lines are redrawn after each census, so earlier members may have represented a different area under this number.
Massachusetts's 4th Congressional District covers 672 square miles of land. Boundaries are for the current (119th) Congress.