Massachusetts's 6th Congressional District

Massachusetts's 6th Congressional District is represented by Seth Moulton (Democrat), who has held the seat since 2015. Moulton has an overall VoteSee report card grade of D, voted in 85% of roll-call votes on bills this Congress, and votes with the Democratic majority 97% of the time. The district includes Lynn, Peabody, and Salem. It takes in all or part of 2 counties, and 77% of residents live in Essex County. About 785,000 people live in the district, and the median household income is $118,476.

Current Representative

Seth Moulton (Democrat) has represented Massachusetts's 6th Congressional District since 2015.

VoteSee report card grade: D
Attendance in the 119th Congress: 85% of roll-call votes on bills
Votes with the Democrat majority: 97%

See Seth Moulton's full voting record and issue positions →

2026 Election

U.S. House: Massachusetts 6th District

Winner: Dan Koh.

This is an open seat: Seth Moulton is not running for re-election. 2 candidates were on the Nov 3, 2026 ballot.

Dan Koh (Democratic): raised $5.4M, $1.1M cash on hand
Micah Jones (Republican): raised $620K, $170K cash on hand

Polls: No public polls

See the full 2026 race →

District Demographics

Population: 784,690
Median household income: $118,476
Median age: 43
Median home value: $670,800
Bachelor's degree or higher: 49.9%

Source: American Community Survey 2020–2024 5-year estimates, 119th Congress boundaries.

How Moulton Voted Recently

Yea on American Enrichment Deployment Act (Nov 9, 2026) — Passed
Yea on Nuclear REFUEL (Recycling Efficient Fuels Utilizing Expedited Licensing) Act (Nov 9, 2026) — Passed
Yea on Retire through Ownership Act (Sep 16, 2026) — Passed
Yea on Water Resources Development Act of 2026 (Sep 16, 2026) — Passed
Yea on Ratepayer Protection Act (Sep 16, 2026) — Passed

Breaks with the Democrat majority

Yea on Lindsey O. Graham Sanctioning Russia and Iran Act of 2026 (Sep 16, 2026) — Passed
Yea on Directing the President pursuant to section 5(c) of the War Powers Resolution to remove United States Armed Forces from Lebanon. (Jun 4, 2026) — Failed
Yea on Harnessing Energy At Thermal Sources Act of 2026 (Apr 23, 2026) — Passed

Who Held This Seat Before

Members of Congress who previously represented Massachusetts's 6th Congressional District. District lines are redrawn after each census, so earlier members may have represented a different area under this number.

John Tierney — Democrat (1997–2015)
Peter Torkildsen — Republican (1993–1997)
Nicholas Mavroules — Democrat (1979–1993)
Michael Harrington — Democrat (1969–1979)
William Bates — Republican (1949–1971)
George Bates — Republican (1937–1951)
Abram Andrew — Republican (1921–1937)
Willfred Lufkin — Republican (1917–1923)
Augustus Gardner — Republican (1901–1919)
William Moody — Republican (1895–1903)
William Cogswell — Republican (1893–1897)
Henry Lodge — Republican (1887–1893)

Where the District Is

Massachusetts's 6th Congressional District covers 533 square miles of land. Boundaries are for the current (119th) Congress.

Counties

Essex County (part): 77% of residents
Middlesex County (part): 23% of residents

Largest communities

Lynn
Peabody
Salem
Beverly
Gloucester
Saugus
Danvers
Wakefield