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Massachusetts Legislative District Atlas

Interactive maps and demographic data for all 217 Massachusetts legislative districts

Fun Facts

The largest and smallest State Rep districts

  • While every mapoli State Representative district has approximately the same population (currently about 44,000 people) the districts vary widely in geographic size.
  • The smallest State Representative district in terms of area is Speaker Aaron Michlewitz’s Third Suffolk district coming in at a petite 1.36 square miles.
  • The largest State Representative district is the Third Berkshire district represented by Leigh Davis of Great Barrington. The district covers a whopping 551 square miles and contains 18 separate municipalities.

Statewide District Overviews and Comparisons

The district atlas contains statewide maps for each legislative office with district-to-district comparison tables on political and demographic data.

Example office page

Per-District Map, Demographics, and Election Information

There is also a separate page for each of the 160 State Representative, 40 State Senate, 9 U.S. House, and 8 Governor’s Council districts with demographic details and electon results back to 1990.

Example district page

Full Legislative District List

The full list of 160 State Representative, 40 State Senate, 8 Governor’s Council, 9 U.S. House districts.

Massachusetts Legislative Districts