The Massachusetts Senate is the upper house of the Massachusetts General Court, the bicameral state legislature of the Commonwealth of Massachusetts. The Senate comprises 40 elected members from 40 single-member senatorial districts in the state. All but one of the districts are named for the counties in which they are located (the "Cape and Islands" district covers Dukes, Nantucket, and parts of Barnstable counties). Senators serve two-year terms, without term limits. The Senate convenes in the Massachusetts State House in Boston, the state capital.

Qualifications

The following are the qualifications to be elected to the Massachusetts Senate:

Be 18 years of age

Massachusetts Senate
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Be a registered voter in Massachusetts

Be an inhabitant of Massachusetts for five years

Be a resident of the district when elected

Massachusetts Senate
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Receive at least 300 signatures on nomination papers

Recent party control

Democrats hold a supermajority in the Senate.

Current leadership

Current members and districts

Massachusetts Senate districts are named for the counties that contain a portion of the district ordered by percentage of the district's population that is within that county. If multiple districts would have the same name under this scheme, they are also given an ordinal number. The one exception is "Cape and Islands" which if the naming scheme were followed would be "Barnstable, Dukes, and Nantucket".

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Berkshire, Hampden, Franklin, and Hampshire

Bristol and Norfolk

First Bristol and Plymouth

Massachusetts Senate
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Second Bristol and Plymouth

Third Bristol and Plymouth

Cape and Islands

First Essex

Second Essex

Third Essex

First Essex and Middlesex

Second Essex and Middlesex

Hampden

Hampden and Hampshire

Hampden, Hampshire, and Worcester

Hampshire, Franklin, and Worcester

First Middlesex

Second Middlesex

Third Middlesex

Fourth Middlesex

Fifth Middlesex

Middlesex and Norfolk

Middlesex and Suffolk

Middlesex and Worcester

Norfolk and Middlesex

Norfolk and Plymouth

Norfolk, Plymouth, and Bristol

Norfolk and Suffolk

Norfolk, Worcester, and Middlesex

Plymouth and Barnstable

First Plymouth and Norfolk

Second Plymouth and Norfolk

First Suffolk

Second Suffolk

Third Suffolk

Suffolk and Middlesex

First Worcester

Second Worcester

Worcester and Hampden

Worcester and Hampshire

Worcester and Middlesex

Current committees and members

Past composition of the Senate