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2018 general · November 6, 2018

2018 Massachusetts State Senate election results, district by district

Every Massachusetts State Senate district in the 2018 general election: winners, margins, unopposed seats and seats that changed party.

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Seats after the election

Democrats controlled the chamber · 40 seats

After the electionD 34 · R 6
Races40
Changed party2
Unopposed60%24 races
Incumbents defeated1

Every district

D 34 · R 6

RaceWinnerWon byNotes
SD-1Nick Collins (D)98.4
SD-2Sonia Rosa Changdiaz (D)Unopposed
SD-3James T. Welch (D)Unopposed
SD-4Adam G. Hinds (D)Unopposed
SD-5Donald F. Humason Jr. (R)Unopposed
SD-6Jo Comerford (D)Unopposed
SD-7Eric P. Lesser (D)Unopposed
SD-8Anne M. Gobi (D)9.8
SD-9Dean Tran (R)8.6Flipped
SD-10Harriette L. Chandler (D)Unopposed
SD-11Mike Moore (D)Unopposed
SD-12Ryan Fattman (R)15.9
SD-13Edward J. Kennedy Jr. (D)27.8
SD-14Jamie Eldridge (D)32.4
SD-15Karen Spilka (D)Unopposed
SD-16Mike Barrett (D)Unopposed
SD-17Becca Rausch (D)2.7FlippedIncumbent lost
SD-18Barry Finegold (D)25.7
SD-19Diana DiZoglio (D)32.6
SD-20Bruce Tarr (R)Unopposed
SD-21Joan Lovely (D)Unopposed
SD-22Brendan Crighton (D)Unopposed
SD-23Jason Lewis (D)34.0
SD-24Cindy Friedman (D)Unopposed
SD-25Pat Jehlen (D)Unopposed
SD-26Sal DiDomenico (D)Unopposed
SD-27Joseph A. Boncore (D)Unopposed
SD-28Will Brownsberger (D)Unopposed
SD-29Cynthia Creem (D)Unopposed
SD-30Mike Rush (D)Unopposed
SD-31Paul Feeney (D)21.1
SD-32Walter F. Timilty Jr. (D)Unopposed
SD-33John Keenan (D)51.5
SD-34Patrick O'Connor (R)6.7
SD-35Mike Brady (D)33.0
SD-36Marc R. Pacheco (D)Unopposed
SD-37Michael Rodrigues (D)Unopposed
SD-38Mark Montigny (D)Unopposed
SD-39Vinny M. Demacedo (R)17.6
SD-40Julian Cyr (D)24.2

Massachusetts State Senate

Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Harvard Dataverse / Carl Klarner; MIT Election Data and Science Lab