Elections / 2020 · Senate · MA
Massachusetts — 2020 U.S. Senate election
Recent presidential results
Akashicstate2020 Senate electionMassachusetts · U.S. SenateMarkeyD+31.7
How it voted
Share of the 2020 vote
| Edward J. Markey (i) ✓Democrat | 66.3% | 2,357,809 |
|---|---|---|
| Kevin J. O'ConnerRepublican | 33.1% | 1,177,765 |
| Shiva AyyaduraiIndependent | 0.6% | 21,134 |
2020Senate margin
D+60R+60
14 counties, each filled by 2020 D-vs-R margin. Hover any county for its result.
County-level results (14 counties) — table
| County | Winner | Margin |
|---|---|---|
| BARNSTABLE, MA | Democratic | D+20.7 |
| BERKSHIRE, MA | Democratic | D+46.1 |
| BRISTOL, MA | Democratic | D+14.5 |
| DUKES, MA | Democratic | D+53.7 |
| ESSEX, MA | Democratic | D+28.7 |
| FRANKLIN, MA | Democratic | D+42.2 |
| HAMPDEN, MA | Democratic | D+16.3 |
| HAMPSHIRE, MA | Democratic | D+45.2 |
| MIDDLESEX, MA | Democratic | D+43.2 |
| NANTUCKET, MA | Democratic | D+42.4 |
| NORFOLK, MA | Democratic | D+31.9 |
| PLYMOUTH, MA | Democratic | D+14.8 |
| SUFFOLK, MA | Democratic | D+61.4 |
| WORCESTER, MA | Democratic | D+16.4 |
presidential baselinePresident 2020D+33.2Senate 2020D+33.2vs. baselineIn line
Massachusetts's 2020 Senate race tracked the presidential race on the same ballot almost exactly.
Massachusetts's Senate margins
Every contest in our store, 1976–2024
| Year | Margin (D minus R) |
|---|---|
| 1976 | +40.3% |
| 1978 | +10.2% |
| 1982 | +22.6% |
| 1984 | +10.1% |
| 1988 | +31.0% |
| 1990 | +13.6% |
| 1994 | +17.1% |
| 1996 | +7.5% |
| 2000 | +59.8% |
| 2002 | +81.0% |
| 2006 | +38.8% |
| 2008 | +34.9% |
| 2012 | +7.5% |
| 2014 | +23.9% |
| 2018 | +24.2% |
| 2020 | +33.2% |
| 2024 | +19.8% |
Same ballot, 2020MA
Source. MIT Election Data + Science Lab — 2020 US Senate returns, party-classified by literal ballot party · county returns aggregated from precinct-level results. Real returns — nothing estimated.