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Massachusetts's 3rd Congressional District (MA-3)

Last updated · 5 sources

Lori Trahan, a Democrat, has represented the district since 2019.

The district includes parts of Middlesex, Worcester, and Essex counties.

According to the Census Bureau's 2020–2024 American Community Survey 5-year estimates, the district has a population of 785,403, a median household income of $99,663, and a median age of 39.2. Of residents 25 and older, 40% hold a bachelor's degree or higher.

Representative

Official portrait of Lori Trahan, U.S. Representative for Massachusetts's 3rd District
Lori Trahan

U.S. Representative for Massachusetts's 3rd District · Democrat

ProfileSchedule this week

2026 election

Trahan has filed with the FEC to run for this seat in 2026. 2 candidates for the seat have reported receipts to the FEC.

2 candidates have reported raising money for the 2026 MA-3 race to the FEC.

Election Day: Tuesday, November 3, 2026

Candidates for MA-3 in 2026 who reported raising money to the FEC
CandidatePartyRaisedCash on handThrough
Lori Trahan (incumbent)Democratic$1,639,978$1,773,389Aug 12
Gary J. GrossiRepublican$7,121$5,775Aug 12

Includes primary candidates; FEC filings do not record primary results. FEC race page

District profile

Population
785,403
Median household income
$99,663
Median age
39.2
Bachelor's degree or higher
40%

Census Bureau, 2020–2024 American Community Survey 5-year estimates

Massachusetts senators

Neighboring districts

  • MA-2 · Jim McGovern (D)
  • MA-5 · Katherine Clark (D)
  • MA-6 · Seth Moulton (D)
  • NH-1 · Chris Pappas (D)
  • NH-2 · Maggie Goodlander (D)

Sources