| House 1st Barnstable | Timothy Whelan (R) 52% | Elisa Beth Zawadzkas (D) 48% | Flipped D to R |
| House 1st Berkshire | Gailanne Cariddi (D) 100% | Unopposed | |
| House 1st Bristol | Fred Jay Barrows (R) 100% | Unopposed | |
| House 1st Essex | James Kelcourse (R) 42.05% | Edward C. Cameron (D) 41.99%, Ari B. Herzog (I) 9.81% | Flipped D to R |
| House 1st Franklin | Stephen Kulik (D) 69.96% | Dylan E. Korpita (R) 30.04% | |
| House 1st Hampden | Todd Smola (R) 100% | Unopposed | |
| House 1st Hampshire | Peter Kocot (D) 100% | Unopposed | |
| House 1st Middlesex | Sheila Harrington (R) 64.29% | Gene A. Rauhala (D) 35.71% | |
| House 1st Norfolk | Bruce Ayers (D) 100% | Unopposed | |
| House 1st Plymouth | Mathew Muratore (R) 60.21% | Stephen Michael Palmer (D) 39.79% | |
| House 1st Suffolk | Carlo Basile (D) 76.41% | Celeste Ribeiro B. Myers (I) 23.59% | |
| House 1st Worcester | Kim Ferguson (R) 100% | Unopposed | |
| House 2nd Barnstable | Brian Mannal (D) 50.67% | Adam G. Chaprales, Sr (R) 49.33% | |
| House 2nd Berkshire | Paul Mark (D) 100% | Unopposed | |
| House 2nd Bristol | Paul Heroux (D) 61.12% | Bert J. Buckley (R) 38.88% | |
| House 2nd Essex | Leonard Mirra (R) 100% | Unopposed | |
| House 2nd Franklin | Susannah Whipps (R) 54.63% | Denise Andrews (D) 45.37% | Flipped D to R; Incumbent defeated |
| House 2nd Hampden | Brian Ashe (D) 100% | Unopposed | |
| House 2nd Hampshire | John Scibak (D) 100% | Unopposed | |
| House 2nd Middlesex | Jim Arciero (D) 52.78% | Dennis J. Galvin (R) 44.36%, Arleen M. Martino (I) 2.86% | |
| House 2nd Norfolk | Tackey Chan (D) 100% | Unopposed | |
| House 2nd Plymouth | Susan Gifford (R) 100% | Unopposed | |
| House 2nd Suffolk | Danny Ryan (D) 100% | Unopposed | |
| House 2nd Worcester | Jon Zlotnik (D) 50.15% | Garret Shetrawski (R) 49.85% | |
| House 3rd Barnstable | Dave Vieira (R) 100% | Unopposed | |
| House 3rd Berkshire | Tricia Farley-Bouvier (D) 100% | Unopposed | |
| House 3rd Bristol | Shaunna O'Connell (R) 61.34% | Keavin P. Duffy, Jr (D) 38.66% | |
| House 3rd Essex | Brian Dempsey (D) 100% | Unopposed | |
| House 3rd Hampden | Nick Boldyga (R) 67.88% | Samuel Salvatore Disanti, Jr. (D) 32.12% | |
| House 3rd Hampshire | Ellen Story (D) 88.15% | Kenneth J. Roberts, Jr (L) 11.85% | |
| House 3rd Middlesex | Kate Hogan (D) 60.26% | Paddy Dolan (R) 39.74% | |
| House 3rd Norfolk | Ronald Mariano (D) 66.1% | Patricia Kriegel (R) 33.9% | |
| House 3rd Plymouth | Garrett J. Bradley (D) 100% | Unopposed | |
| House 3rd Suffolk | Aaron Michlewitz (D) 100% | Unopposed | |
| House 3rd Worcester | Stephen L. DiNatale (D) 100% | Unopposed | |
| House 4th Barnstable | Sarah Peake (D) 100% | Unopposed | |
| House 4th Berkshire | William Pignatelli (D) 100% | Unopposed | |
| House 4th Bristol | Steven Howitt (R) 100% | Unopposed | |
| House 4th Essex | Bradford Hill (R) 100% | Unopposed | |
| House 4th Hampden | John Velis (D) 58.91% | Dan Allie (R) 41.09% | |
| House 4th Middlesex | Danielle Gregoire (D) 49.9% | Matthew H. Elder (R) 42.64%, Kristine E. Coffey-Donahue (I) 7.46% | |
| House 4th Norfolk | James Michael Murphy (D) 58.49% | Andrea E. Farretta (R) 41.51% | |
| House 4th Plymouth | James Cantwell (D) 58.65% | James Anthony Pavlik (R) 41.35% | |
| House 4th Suffolk | Nick Collins (D) 100% | Unopposed | |
| House 4th Worcester | Dennis Rosa (D) 55.04% | Jacques A. Perrault (R) 44.96% | |
| House 5th Barnstable | Randy Hunt (R) 62.74% | Matthew M. Terry (D) 37.26% | |
| House 5th Bristol | Patricia Haddad (D) 100% | Unopposed | |
| House 5th Essex | Ann-Margaret Ferrante (D) 59.02% | Michael Boucher (R) 40.98% | |
| House 5th Hampden | Aaron Vega (D) 98.17% | Jerome T. Hobert (I) 1.83% | |
| House 5th Middlesex | David Linsky (D) 62.57% | Douglas A. Grindle (R) 37.43% | |
| House 5th Norfolk | Mark Cusack (D) 100% | Unopposed | |
| House 5th Plymouth | David DeCoste (R) 50.15% | Rhonda Nyman (D) 49.85% | Flipped D to R; Incumbent defeated |
| House 5th Suffolk | Evandro C. Carvalho (D) 88.96% | Claudette N. Joseph (R) 10.82%, Althea Garrison 0.22% | |
| House 5th Worcester | Donald Berthiaume, Jr. (R) 56.38% | Matthew Castriotta (D) 43.62% | Flipped D to R |
| House 6th Bristol | Carole Fiola (D) 59.39% | David L. Steinhof (R) 40.61% | |
| House 6th Essex | Jerry Parisella (D) 74.14% | Euplio Marciano (I) 25.86% | |
| House 6th Hampden | Mike Finn (D) 56.88% | Nathan A. Bech (R) 43.12% | |
| House 6th Middlesex | Chris Walsh (D) 83.64% | Michael John Coombes (L) 16.36% | |
| House 6th Norfolk | William C. Galvin (D) 100% | Unopposed | |
| House 6th Plymouth | Josh Cutler (D) 53.82% | Joseph Sheehan (R) 46.18% | |
| House 6th Suffolk | Russell Holmes (D) 100% | Unopposed | |
| House 6th Worcester | Peter Durant (R) 62.94% | Karen A. Spiewak (D) 37.06% | |
| House 7th Bristol | Alan Silvia (D) 100% | Unopposed | |
| House 7th Essex | Paul Tucker (D) 84.03% | Daniel J. Morris (L) 15.97% | |
| House 7th Hampden | Thomas Petrolati (D) 100% | Unopposed | |
| House 7th Middlesex | Tom Sannicandro (D) 100% | Unopposed | |
| House 7th Norfolk | Walter F. Timilty, Jr. (D) 100% | Unopposed | |
| House 7th Plymouth | Geoff Diehl (R) 100% | Unopposed | |
| House 7th Suffolk | Gloria L. Fox (D) 100% | Unopposed | |
| House 7th Worcester | Paul Frost (R) 73.7% | Terry Burke Dotson (D) 26.3% | |
| House 8th Bristol | Paul Schmid III (D) 100% | Unopposed | |
| House 8th Essex | Lori Ehrlich (D) 100% | Unopposed | |
| House 8th Hampden | Joseph Wagner (D) 100% | Unopposed | |
| House 8th Middlesex | Carolyn Dykema (D) 56.76% | Patricia M. Vanaria (R) 43.24% | |
| House 8th Norfolk | Louis Kafka (D) 100% | Unopposed | |
| House 8th Plymouth | Angelo D'Emilia (R) 53.65% | Joseph Pacheco (D) 46.35% | |
| House 8th Suffolk | Jay Livingstone (D) 100% | Unopposed | |
| House 8th Worcester | Kevin Kuros (R) 60.42% | Joseph M. Hall (D) 35.26%, Joseph F. Guertin (I) 4.32% | |
| House 9th Bristol | Christopher Markey (D) 66.77% | Patrick t. J. Curran (R) 33.23% | |
| House 9th Essex | Donald Wong (R) 60.56% | Christopher J. Finn (D) 39.44% | |
| House 9th Hampden | Jose Tosado (D) 78.62% | Robert Underwood (I) 21.38% | |
| House 9th Middlesex | Thomas M. Stanley (D) 71.54% | Sharon K. Antia (I) 28.46% | |
| House 9th Norfolk | Shawn Dooley (R) 100% | Unopposed | |
| House 9th Plymouth | Michael D. Brady (D) 100% | Unopposed | |
| House 9th Suffolk | Byron Rushing (D) 100% | Unopposed | |
| House 9th Worcester | David Muradian, Jr. (R) 62.39% | Martin Green (D) 37.61% | |
| House 10th Bristol | William Straus (D) 65.54% | Abilio Bill Soares (R) 34.46% | |
| House 10th Essex | Robert Fennell (D) 100% | Unopposed | |
| House 10th Hampden | Carlos González (D) 100% | Unopposed | |
| House 10th Middlesex | John J. Lawn, Jr. (D) 100% | Unopposed | |
| House 10th Norfolk | Jeff Roy (D) 100% | Unopposed | |
| House 10th Plymouth | Michelle DuBois (D) 50.71% | John Cruz (R) 46.69%, Tyler Jay Prescott (I) 2.61% | |
| House 10th Suffolk | Edward Coppinger (D) 100% | Unopposed | |
| House 10th Worcester | John V. Fernandes (D) 58.92% | Mark W. Reil, Jr (R) 41.08% | |
| House 11th Bristol | Robert Koczera (D) 100% | Unopposed | |
| House 11th Essex | Brendan Crighton (D) 100% | Unopposed | |
| House 11th Hampden | Benjamin Swan (D) 100% | Unopposed | |
| House 11th Middlesex | Kay Khan (D) 100% | Unopposed | |
| House 11th Norfolk | Paul McMurtry (D) 100% | Unopposed | |
| House 11th Plymouth | Claire Cronin (D) 100% | Unopposed | |
| House 11th Suffolk | Elizabeth Malia (D) 100% | Unopposed | |
| House 11th Worcester | Matthew A. Beaton (R) 100% | Unopposed | |
| House 12th Bristol | Keiko Orrall (R) 100% | Unopposed | |
| House 12th Essex | Leah Cole (R) 51.54% | Beverley A. Griffin Dunne (D) 48.46% | |
| House 12th Hampden | Angelo Puppolo (D) 65.24% | Bob Russell (R) 34.76% | |
| House 12th Middlesex | Ruth Balser (D) 100% | Unopposed | |
| House 12th Norfolk | John Rogers (D) 58.12% | Tim Hempton (R) 41.88% | |
| House 12th Plymouth | Thomas J. Calter, III (D) 100% | Unopposed | |
| House 12th Suffolk | Dan Cullinane (D) 100% | Unopposed | |
| House 12th Worcester | Harold P. Naughton, Jr. (D) 55.47% | Brad P. Wyatt (R) 44.53% | |
| House 13th Bristol | Tony Cabral (D) 100% | Unopposed | |
| House 13th Essex | Theodore Speliotis (D) 52.44% | Thomas J. Lyons (R) 47.56% | |
| House 13th Middlesex | Carmine Gentile (D) 100% | Unopposed | |
| House 13th Norfolk | Denise Garlick (D) 100% | Unopposed | |
| House 13th Suffolk | Dan Hunt (D) 100% | Unopposed | |
| House 13th Worcester | John Mahoney (D) 68.58% | Jacqueline Gisela Kostas (R) 31.42% | |
| House 14th Bristol | Elizabeth Poirier (R) 100% | Unopposed | |
| House 14th Essex | Diana DiZoglio (D) 54.9% | Rosemary Connelly Smedile (R) 45.1% | |
| House 14th Middlesex | Cory Atkins (D) 75.25% | Kenneth William Van Tassell (L) 24.75% | |
| House 14th Norfolk | Alice Peisch (D) 100% | Unopposed | |
| House 14th Suffolk | Angelo Scaccia (D) 100% | Unopposed | |
| House 14th Worcester | Jim O'Day (D) 100% | Unopposed | |
| House 15th Essex | Linda Dean Campbell (D) 57.37% | Al DiNuccio (R) 42.63% | |
| House 15th Middlesex | Jay R. Kaufman (D) 100% | Unopposed | |
| House 15th Norfolk | Frank Smizik (D) 80.67% | Curt Myers (R) 19.33% | |
| House 15th Suffolk | Jeffrey Sanchez (D) 100% | Unopposed | |
| House 15th Worcester | Mary Keefe (D) 100% | Unopposed | |
| House 16th Essex | Marcos Devers (D) 47.01% | William Lantigua (I) 41.29%, Roger A. Twomey (R) 11.7% | |
| House 16th Middlesex | Thomas A. Golden, Jr. (D) 100% | Unopposed | |
| House 16th Suffolk | RoseLee Vincent (D) 100% | Unopposed | |
| House 16th Worcester | Dan Donahue (D) 100% | Unopposed | |
| House 17th Essex | Frank Moran (D) 100% | Unopposed | |
| House 17th Middlesex | David Nangle (D) 100% | Unopposed | |
| House 17th Suffolk | Kevin Honan (D) 100% | Unopposed | |
| House 17th Worcester | Kate Campanale (R) 50.23% | Douglas A. Belanger (D) 49.77% | Flipped D to R |
| House 18th Essex | James J. Lyons, Jr. (R) 100% | Unopposed | |
| House 18th Middlesex | Rady Mom (D) 61.72% | Fred W. Bahou (I) 38.28% | |
| House 18th Suffolk | Michael J. Moran (D) 100% | Unopposed | |
| House 18th Worcester | Joe McKenna (R) 60.09% | Mark G. Dowgiewicz (D) 39.91% | |
| House 19th Middlesex | James Miceli (D) 70.31% | Douglas W. Sears (R) 29.69% | |
| House 19th Suffolk | Robert DeLeo (D) 71.76% | Paul A. Caruccio (R) 28.24% | |
| House 20th Middlesex | Bradley Jones, Jr. (R) 100% | Unopposed | |
| House 21st Middlesex | Ken Gordon (D) 52.27% | Paul Girouard, Jr (R) 47.73% | |
| House 22nd Middlesex | Marc Lombardo (R) 96.49% | Dean Douglas Santoro (D) 3.51% | |
| House 23rd Middlesex | Sean Garballey (D) 77.62% | Joseph J. Monju (R) 22.38% | |
| House 24th Middlesex | David M. Rogers (D) 100% | Unopposed | |
| House 25th Middlesex | Marjorie Decker (D) 100% | Unopposed | |
| House 26th Middlesex | Timothy J. Toomey, Jr. (D) 87.36% | Thomas Michael Vasconcelos (I) 12.64% | |
| House 27th Middlesex | Denise Provost (D) 88.11% | Noelani Kamelamela (R) 11.89% | |
| House 28th Middlesex | Joe McGonagle (D) 100% | Unopposed | |
| House 29th Middlesex | Jonathan Hecht (D) 100% | Unopposed | |
| House 30th Middlesex | James Dwyer (D) 100% | Unopposed | |
| House 31st Middlesex | Mike Day (D) 51.42% | Caroline Colarusso (R) 48.58% | |
| House 32nd Middlesex | Paul Brodeur (D) 65.97% | John P. Lock (R) 34.03% | |
| House 33rd Middlesex | Steve Ultrino (D) 66.59% | John P. Matheson (I) 33.41% | |
| House 34th Middlesex | Christine Barber (D) 64.3% | Nicholas Lanzilli (I) 35.7% | |
| House 35th Middlesex | Paul J. Donato, Sr. (D) 100% | Unopposed | |
| House 36th Middlesex | Colleen Garry (D) 53.74% | Cathy Richardson (R) 46.26% | |
| House 37th Middlesex | Jennifer Benson (D) 100% | Unopposed | |
| House Barnstable, Dukes and Nantucket | Timothy R. Madden (D) 100% | Unopposed | |
| Senate 1st Bristol and Plymouth | Michael Rodrigues (D) 65.3% | Derek A. Maksy (R) 34.6% | |
| Senate 1st Essex | Kathleen A. O'Connor Ives (D) 53.82% | Shaun P. Toohey (R) 46.18% | |
| Senate 1st Essex and Middlesex | Bruce Tarr (R) 100% | Unopposed | |
| Senate 1st Hampden and Hampshire | Eric Philip Lesser (D) 50.43% | Debra A. Boronski (R) 44.72%, Mike Franco (I) 4.85% | |
| Senate 1st Middlesex | Eileen Donoghue (D) 100% | Unopposed | |
| Senate 1st Middlesex and Norfolk | Cynthia Creem (D) 100% | Unopposed | |
| Senate 1st Plymouth and Bristol | Marc Pacheco (D) 60.9% | David Rosa (R) 39% | |
| Senate 1st Suffolk | Linda Dorcena Forry (D) 84.07% | Robert E. Powers, Jr (I) 15.93% | |
| Senate 1st Suffolk and Middlesex | Anthony W. Petruccelli (D) 100% | Unopposed | |
| Senate 1st Worcester | Harriette Chandler (D) 60.27% | Paul J. Franco (R) 39.73% | |
| Senate 2nd Bristol and Plymouth | Mark Montigny (D) 98.7% | Unopposed | |
| Senate 2nd Essex | Joan Lovely (D) 100% | Unopposed | |
| Senate 2nd Essex and Middlesex | Barbara L'Italien (D) 53.29% | Alex J. Vispoli (R) 46.71% | |
| Senate 2nd Hampden and Hampshire | Donald F. Humason, Jr. (R) 56.66% | Patrick T. Leahy (D) 43.34% | |
| Senate 2nd Middlesex | Patricia D. Jehlen (D) 75.67% | Robert L. Cappucci, Jr. (R) 24.33% | |
| Senate 2nd Middlesex and Norfolk | Karen Spilka (D) 100% | Unopposed | |
| Senate 2nd Plymouth and Bristol | Thomas P. Kennedy (D) 40.25% | Viola A. Ryerson (R) 20.29% | |
| Senate 2nd Suffolk | Sonia Chang-Diaz (D) 90.04% | David James Wyatt (R) 9.96% | |
| Senate 2nd Suffolk and Middlesex | William N. Brownsberger (D) 100% | Unopposed | |
| Senate 2nd Worcester | Michael O. Moore (D) 100% | Unopposed | |
| Senate 3rd Essex | Thomas McGee (D) 100% | Unopposed | |
| Senate 3rd Middlesex | Michael J. Barrett (D) 59.24% | Sandi Martinez (R) 40.76% | |
| Senate 4th Middlesex | Kenneth Donnelly (D) 100% | Unopposed | |
| Senate 5th Middlesex | Jason Lewis (D) 56.84% | Monica C. Medeiros (R) 43.16% | |
| Senate Berkshire, Hampshire, Franklin and Hampden | Benjamin B. Downing (D) 100% | Unopposed | |
| Senate Bristol and Norfolk | James Timilty (D) 100% | Unopposed | |
| Senate Cape and Islands | Daniel A. Wolf (D) 62.43% | Ronald R. Beaty, Jr. (R) 37.09%, Allen R. Waters (R) 0.48% | |
| Senate Hampden | James Welch (D) 100% | Unopposed | |
| Senate Hampshire, Franklin and Worcester | Stanley C. Rosenberg (D) 100% | Unopposed | |
| Senate Middlesex and Suffolk | Sal DiDomenico (D) 100% | Unopposed | |
| Senate Middlesex and Worcester | James B. Eldridge (D) 48.49% | Unopposed | |
| Senate Norfolk and Plymouth | John Keenan (D) 66% | Leslie C. Gosule (R) 33.9% | |
| Senate Norfolk and Suffolk | Michael F. Rush (D) 100% | Unopposed | |
| Senate Norfolk, Bristol and Middlesex | Richard J. Ross (R) 61.08% | Dylan Hayre (D) 38.92% | |
| Senate Norfolk, Bristol and Plymouth | Brian A. Joyce (D) 100% | Unopposed | |
| Senate Plymouth and Barnstable | Vinny deMacedo (R) 61.13% | Matthew C. Patrick (D) 35.24%, Heather M. Mullins (L) 3.63% | Flipped D to R |
| Senate Plymouth and Norfolk | Robert L. Hedlund, Jr. (R) 99.1% | Unopposed | |
| Senate Worcester and Middlesex | Jennifer Flanagan (D) 31.13% | Richard M. Bastien (R) 20.38% | |
| Senate Worcester and Norfolk | Ryan Fattman (R) 55.72% | Richard T. Moore (D) 44.28% | Flipped D to R; Incumbent defeated |
| Senate Worcester, Hampden, Hampshire and Middlesex | Anne Gobi (D) 50.36% | Michael J. Valanzola (R) 49.64% | |