Massachusetts Legislature

Massachusetts Senate

40 seats: Democratic 35, Republican 5. A majority is 21. 40 districts.

Seats by party

Massachusetts Senate

Seats before the November 3, 2026 election

21 needed for a majority

  • 35 Democratic
  • 5 Republican
Massachusetts Senate seats before the November 3, 2026 election
Party or statusSeats
Democratic35
Republican5

Seats before the November 3, 2026 election, current to November 2, 2026, counted from the official member list. Source: Massachusetts Senate (opens in a new tab).

Massachusetts Senate districts map

Point to or tap a district for its name and a link to its page. The list below has every district.

Massachusetts Senate, Worcester and Hampshire DistrictMassachusetts Senate, Norfolk-Worcester-Middlesex DistrictMassachusetts Senate, Norfolk and Plymouth DistrictMassachusetts Senate, Third Bristol and Plymouth DistrictMassachusetts Senate, Plymouth and Barnstable DistrictMassachusetts Senate, Cape and Islands DistrictMassachusetts Senate, Hampden-Hampshire-Worcester DistrictMassachusetts Senate, Second Essex and Middlesex DistrictMassachusetts Senate, First Plymouth and Norfolk DistrictMassachusetts Senate, Hampshire-Franklin-Worcester DistrictMassachusetts Senate, Norfolk-Plymouth-Bristol DistrictMassachusetts Senate, First Essex and Middlesex DistrictMassachusetts Senate, Second Bristol and Plymouth DistrictMassachusetts Senate, Suffolk and Middlesex DistrictMassachusetts Senate, Second Middlesex DistrictMassachusetts Senate, Berkshire-Hampden-Franklin-Hampshire DistrictMassachusetts Senate, Worcester and Middlesex DistrictMassachusetts Senate, Second Suffolk DistrictMassachusetts Senate, Second Essex DistrictMassachusetts Senate, Hampden and Hampshire DistrictMassachusetts Senate, Second Worcester DistrictMassachusetts Senate, Middlesex and Norfolk DistrictMassachusetts Senate, Norfolk and Suffolk DistrictMassachusetts Senate, Third Essex DistrictMassachusetts Senate, Middlesex and Suffolk DistrictMassachusetts Senate, First Essex DistrictMassachusetts Senate, First Worcester DistrictMassachusetts Senate, Hampden DistrictMassachusetts Senate, Fourth Middlesex DistrictMassachusetts Senate, Second Plymouth and Norfolk DistrictMassachusetts Senate, Worcester and Hampden DistrictMassachusetts Senate, Third Middlesex DistrictMassachusetts Senate, First Middlesex DistrictMassachusetts Senate, Third Suffolk DistrictMassachusetts Senate, Bristol and Norfolk DistrictMassachusetts Senate, First Bristol and Plymouth DistrictMassachusetts Senate, Norfolk and Middlesex DistrictMassachusetts Senate, First Suffolk DistrictMassachusetts Senate, Fifth Middlesex DistrictMassachusetts Senate, Middlesex and Worcester District

Every district

Sources and methodology

ShowWhere the seat counts and district lines come from.

These are the seats before the November 3, 2026 election, as the legislature listed them.

District lines come from the U.S. Census Bureau's upper chamber boundary file (Cartographic boundary files, state legislative districts), which maps the districts the state reported to the Census Bureau. Where a state has redrawn its districts since then, the state's own maps are the official ones. District names are the Census Bureau's.

Massachusetts Legislature overview