# 2020 Massachusetts Democratic presidential primary

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The 2020 Massachusetts Democratic presidential primary took place on March 3, as one of 15 contests scheduled on Super Tuesday in the Democratic Party primaries for the 2020 presidential election, following the South Carolina primary the weekend before. The Massachusetts primary was a semi-closed primary, with the state awarding 114 delegates towards the 2020 Democratic National Convention, of which 91 were pledged delegates allocated on the basis of the results of the primary.
While senators Bernie Sanders and Elizabeth Warren had been thoroughly projected in all pre-election polls and forecasts to compete for victory till the last day, former vice president Joe Biden, who had barely polled over 15% in the state, made an enormous surge and won by a large margin with over 33% of the vote and 37 delegates, continuing his string of Super Tuesday victories. One of the greatest upsets of the night, Biden almost certainly owed his success to the last minute endorsements from former Democratic opponents Pete Buttigieg, Amy Klobuchar and Beto O'Rourke after his South Carolina win. Sanders finished behind in second place with nearly 27% and 30 delegates, while Warren's third-place finish in her home state with around 21% of the vote and 24 delegates was regarded the final crush to her candidacy. Former mayor Michael Bloomberg did not win any delegates.

## Procedure

Massachusetts was one of 14 states and one territory holding primaries on March 3, 2020, also known as "Super Tuesday". Voting took place throughout the state from 7:00 a.m. until 8:00 p.m. in much of the state, with some precincts opening at 5:45 a.m. In the semi-closed primary, candidates had to meet a threshold of 15 percent at the congressional district or statewide level to be considered viable. The 91 pledged delegates to the 2020 Democratic National Convention were allocated proportionally on the basis of the results of the primary. Of these, between 6 and 8 were allocated to each of the state's 9 congressional districts and another 12 were allocated to party leaders and elected officials (PLEO delegates), in addition to 20 at-large delegates.). The Super Tuesday primary as part of Stage I on the primary timetable received no bonus delegates, in order to disperse the primaries between more different date clusters and keep too many states from hoarding on the first shared date or on a March date in general.
After congressional district caucuses on April 25, 2020, during which national convention district delegates were selected, the state party committee met on May 16, 2020, and voted on the 20 at-large and 12 pledged PLEO delegates for the Democratic National Convention. The delegation was joined by 23 unpledged PLEO delegates: 9 members of the Democratic National Committee, 11 members of Congress (both senators, notably Elizabeth Warren, and 9 representatives, including former candidate Seth Moulton), as well as former DNC chairs Steven Grossman, Debra DeLee, and Paul G. Kirk.
Pledged national convention delegates :
| Type | Del. | Type | Del. |
| CD1 | 6 | CD6 | 6 |
| CD2 | 6 | CD7 | 8 |
| CD3 | 6 | CD8 | 7 |
| CD4 | 6 | CD9 | 6 |
| CD5 | 8 | CD9 | 6 |
| PLEO | 12 | At-large | 20 |
| Total pledged delegates | Total pledged delegates | Total pledged delegates | 91 |

## Candidates

The Massachusetts Secretary of the Commonwealth released the following list of candidates on the ballot:
Running
* Joe Biden
* Michael Bloomberg
* Tulsi Gabbard
* Bernie Sanders
* Elizabeth Warren
Withdrawn
* Michael Bennet
* Cory Booker
* Pete Buttigieg
* Julian Castro
* John Delaney
* Amy Klobuchar
* Deval Patrick
* Tom Steyer
* Marianne Williamson
* Andrew Yang
There were also a write-in option and a "no preference" option on the ballot.

## Polling

Polling Aggregation :
| Source of poll aggregation | Date updated | Dates polled | Bernie Sanders | Elizabeth Warren | Joe Biden | Michael Bloomberg | Tulsi Gabbard | Others/ Undecided |
| 270 to Win | March 3, 2020 | Until March 3, 2020 | 22.4% | 21.0% | 15.0% | 13.6% | 1.8% | 26.2% |
| FiveThirtyEight | March 3, 2020 | until March 3, 2020 | 24.4% | 21.0% | 18.1% | 14.5% | 0.4% | 21.6% |
| Average | Average | Average | 23.4% | 21.0% | 16.6% | 14.0% | 1.1% | 23.9% |
| Massachusetts primary results (March 3, 2020) | Massachusetts primary results (March 3, 2020) | Massachusetts primary results (March 3, 2020) | 26.6% | 21.4% | 33.4% | 11.7% | 0.7% | 6.1% |
Tabulation of individual polls of the 2020 Massachusetts Democratic Primary :
| Poll source | Date(s) administered | Sample size | Margin of error | Joe Biden | Michael Bloomberg | Cory Booker | Pete Buttigieg | Kamala Harris | Amy Klobuchar | Beto O'Rourke | Deval Patrick | Bernie Sanders | Elizabeth Warren | Other | Undecided |
| | Mar 2, 2020 | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden | Klobuchar withdraws from the race; endorses Biden |
| Swayable | Mar 1–2, 2020 | 917 (LV) | ± 4.0% | 17% | 18% | – | 11% | – | 5% | – | – | 27% | 15% | 8% | – |
| Data for Progress | Feb 28–Mar 2, 2020 | 301 (LV) | ± 5.6% | 26% | 15% | – | 2% | – | 1% | – | – | 26% | 28% | 2% | – |
| | Mar 1, 2020 | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden | Buttigieg withdraws from the race; endorses Biden |
| Suffolk University/Boston Globe/WBZ-TV | Feb 26–29, 2020 | 500 (LV) | - | 11.0% | 13.0% | – | 12.4% | – | 5.0% | – | – | 24.2% | 22.2% | 3.6% | 8.6% |
| WBUR/MassINC | Feb 23–26, 2020 | 426 (LV) | ± 4.9% | 9% | 13% | - | 14% | - | 6% | - | - | 25% | 17% | 9% | 8% |
| UMass Amherst | Feb 18–24, 2020 | 400 (LV) | ± 5.9% | 12% | 9% | - | 14% | - | 7% | - | - | 25% | 23% | 8% | 3% |
| Falchuk & DiNatale | Feb 16–18, 2020 | 453 (LV) | – | 13% | 13% | – | 13% | – | 14% | – | – | 17% | 16% | 5% | 8% |
| University of Massachusetts Lowell | Feb 12–19, 2020 | 450 (LV) | ± 6.1% | 14% | 12% | – | 15% | – | 9% | – | – | 21% | 20% | 6% | 4% |
| | Feb 12, 2020 | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race | Patrick withdraws from the race |
| Falchuk & DiNatale | Jan 27–30, 2020 | 334 (LV) | – | 16% | 8% | – | 6% | – | 7% | – | 3% | 12% | 23% | 7% | – |
| | Jan 13, 2020 | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race | Booker withdraws from the race |
| | Dec 3, 2019 | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race | Harris withdraws from the race |
| | Nov 24, 2019 | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy | Bloomberg announces his candidacy |
| | Nov 14, 2019 | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy | Patrick announces his candidacy |
| | Nov 1, 2019 | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race | O'Rourke withdraws from the race |
| WBUR | Oct 16–20, 2019 | 456 | ± 4.6% | 18% | – | 0% | 7% | 3% | 1% | 0% | – | 13% | 33% | 7% | 15% |
| Suffolk University | Sep 3–5, 2019 | 500 | - | 26% | – | 1% | 5% | 3% | 0% | 1% | – | 8% | 24% | 6% | 25% |
| | Aug 23, 2019 | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race | Moulton withdraws from the race |
| Suffolk University | Jun 5–9, 2019 | 370 | ± 5.1% | 22% | – | 1% | 8% | 5% | 0% | 1% | – | 6% | 10% | 5% | 42% |
| | Apr 25, 2019 | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy | Biden announces his candidacy |
| | Apr 22, 2019 | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy | Moulton announces his candidacy |
| | Apr 14, 2019 | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy | Buttigieg announces his candidacy |
| Emerson College | Apr 4–7, 2019 | 371 | ± 5.0% | 23% | – | 2% | 11% | 7% | 2% | 8% | – | 26% | 14% | 8% | – |
| | Mar 14, 2019 | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy | O'Rourke announces his candidacy |
| | Feb 19, 2019 | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy | Sanders announces his candidacy |
| | Feb 10, 2019 | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy | Klobuchar announces her candidacy |
| | Feb 9, 2019 | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy | Warren announces her candidacy |
| | Feb 1, 2019 | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy | Booker announces his candidacy |
| | Jan 21, 2019 | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy | Harris announces her candidacy |
| YouGov/UMass Amherst | Nov 7–14, 2018 | 655 | – | 19% | – | 3% | – | 6% | 3% | 10% | 6% | 14% | 11% | 1% | 27% |
Hypothetical polling with only Biden, Sanders and Warren :
| Poll source | Date(s) administered | Sample size | Margin of error | Joe Biden | Bernie Sanders | Elizabeth Warren | Undecided |
| Evan Falchuk and Lou DiNatalie/Commonwealth Magazine | Oct 23–25, 2019 | 443 (LV) | – | 35% | 13% | 41% | 11% |

## Results

2020 Massachusetts Democratic presidential primary :
| Candidate | Votes | % | Delegates |
| Joe Biden | 473,861 | 33.41 | 37 |
| Bernie Sanders | 376,990 | 26.58 | 30 |
| Elizabeth Warren | 303,864 | 21.43 | 24 |
| Michael Bloomberg | 166,200 | 11.72 | |
| Pete Buttigieg (withdrawn) | 38,400 | 2.71 | |
| Amy Klobuchar (withdrawn) | 17,297 | 1.22 | |
| Tulsi Gabbard | 10,548 | 0.74 | |
| Deval Patrick (withdrawn) | 6,923 | 0.49 | |
| Tom Steyer (withdrawn) | 6,762 | 0.48 | |
| Andrew Yang (withdrawn) | 2,708 | 0.19 | |
| Michael Bennet (withdrawn) | 1,257 | 0.09 | |
| John Delaney (withdrawn) | 675 | 0.05 | |
| Marianne Williamson (withdrawn) | 617 | 0.04 | |
| Cory Booker (withdrawn) | 426 | 0.03 | |
| Julian Castro (withdrawn) | 305 | 0.02 | |
| All Others | 1,941 | 0.14 | |
| No Preference | 5,345 | 0.38 | |
| Blank ballots | 4,061 | 0.29 | |
| Total | 1,418,180 | 100% | 91 |

### Results by county

2020 Massachusetts Democratic primary
(results per county) :
| County | Joe Biden | Joe Biden | Bernie Sanders | Bernie Sanders | Elizabeth Warren | Elizabeth Warren | Michael Bloomberg | Michael Bloomberg | Pete Buttigieg | Pete Buttigieg | Amy Klobuchar | Amy Klobuchar | Tulsi Gabbard | Tulsi Gabbard | Deval Patrick | Deval Patrick | Tom Steyer | Tom Steyer | Andrew Yang | Andrew Yang | Michael Bennet | Michael Bennet | John Delaney | John Delaney | Marianne Williamson | Marianne Williamson | Cory Booker | Cory Booker | Julian Castro | Julian Castro | No Preference | No Preference | Blank ballots | Blank ballots | All Others | All Others | Total votes cast |
| County | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Total votes cast |
| Barnstable | 21,423 | 38.44 | 12,106 | 21.72 | 9,399 | 16.86 | 8,011 | 14.37 | 2,177 | 3.91 | 1,056 | 1.89 | 388 | 0.70 | 213 | 0.38 | 426 | 0.76 | 86 | 0.15 | 45 | 0.08 | 18 | 0.03 | 31 | 0.06 | 13 | 0.02 | 2 | 0.00 | 186 | 0.33 | 103 | 0.18 | 51 | 0.09 | 55,734 |
| Berkshire | 10,978 | 38.35 | 8,196 | 28.63 | 5,549 | 19.38 | 2,634 | 9.20 | 461 | 1.61 | 227 | 0.79 | 115 | 0.40 | 210 | 0.73 | 28 | 0.10 | 26 | 0.09 | 15 | 0.05 | 11 | 0.04 | 13 | 0.05 | 6 | 0.02 | 11 | 0.04 | 80 | 0.28 | 44 | 0.15 | 22 | 0.08 | 28,626 |
| Bristol | 29,181 | 36.91 | 22,885 | 28.94 | 10,606 | 13.41 | 10,350 | 13.09 | 2,196 | 2.78 | 818 | 1.03 | 635 | 0.80 | 547 | 0.69 | 488 | 0.62 | 120 | 0.15 | 88 | 0.11 | 46 | 0.06 | 44 | 0.06 | 37 | 0.05 | 25 | 0.03 | 504 | 0.64 | 307 | 0.39 | 189 | 0.24 | 79,066 |
| Dukes | 1,962 | 32.63 | 1,632 | 27.15 | 1,287 | 21.41 | 718 | 11.94 | 192 | 3.19 | 99 | 1.65 | 36 | 0.60 | 19 | 0.32 | 30 | 0.50 | 8 | 0.13 | 5 | 0.08 | 0 | 0.00 | 3 | 0.05 | 2 | 0.03 | 1 | 0.02 | 7 | 0.12 | 6 | 0.10 | 5 | 0.08 | 6,012 |
| Essex | 52,900 | 33.97 | 41,877 | 26.89 | 28,220 | 18.12 | 20,661 | 13.27 | 4,761 | 3.06 | 2,111 | 1.36 | 1,482 | 0.95 | 852 | 0.55 | 890 | 0.57 | 264 | 0.17 | 167 | 0.11 | 79 | 0.05 | 67 | 0.04 | 49 | 0.03 | 48 | 0.03 | 586 | 0.38 | 445 | 0.29 | 268 | 0.17 | 155,727 |
| Franklin | 4,804 | 23.54 | 8,185 | 40.11 | 5,159 | 25.28 | 1,274 | 6.24 | 305 | 1.49 | 159 | 0.78 | 161 | 0.79 | 84 | 0.41 | 66 | 0.32 | 42 | 0.21 | 8 | 0.04 | 47 | 0.23 | 10 | 0.05 | 2 | 0.01 | 1 | 0.00 | 44 | 0.22 | 44 | 0.22 | 13 | 0.06 | 20,408 |
| Hampden | 23,009 | 36.60 | 19,260 | 30.63 | 8,599 | 13.68 | 7,860 | 12.50 | 1,170 | 1.86 | 599 | 0.95 | 484 | 0.77 | 537 | 0.85 | 141 | 0.22 | 118 | 0.19 | 165 | 0.26 | 62 | 0.10 | 30 | 0.05 | 28 | 0.04 | 44 | 0.07 | 319 | 0.51 | 257 | 0.41 | 189 | 0.30 | 62,871 |
| Hampshire | 10,722 | 24.35 | 15,318 | 34.78 | 12,986 | 29.49 | 3,052 | 6.93 | 721 | 1.64 | 426 | 0.97 | 231 | 0.52 | 141 | 0.32 | 57 | 0.13 | 58 | 0.13 | 17 | 0.04 | 9 | 0.02 | 16 | 0.04 | 8 | 0.02 | 6 | 0.01 | 146 | 0.33 | 86 | 0.20 | 41 | 0.09 | 44,041 |
| Middlesex | 123,553 | 30.54 | 99,704 | 24.64 | 109,318 | 27.02 | 45,727 | 11.30 | 11,302 | 2.79 | 5,328 | 1.32 | 2,733 | 0.68 | 1,374 | 0.34 | 1,517 | 0.37 | 895 | 0.22 | 255 | 0.06 | 136 | 0.03 | 124 | 0.03 | 102 | 0.03 | 49 | 0.01 | 1,269 | 0.31 | 827 | 0.20 | 404 | 0.10 | 404,617 |
| Nantucket | 1,055 | 40.56 | 624 | 23.99 | 384 | 14.76 | 373 | 14.34 | 66 | 2.54 | 35 | 1.35 | 15 | 0.58 | 9 | 0.35 | 17 | 0.65 | 4 | 0.15 | 2 | 0.08 | 4 | 0.15 | 1 | 0.04 | 0 | 0.00 | 0 | 0.00 | 9 | 0.35 | 2 | 0.08 | 1 | 0.04 | 2,601 |
| Norfolk | 61,914 | 37.02 | 36,074 | 21.57 | 34,126 | 20.40 | 23,101 | 13.81 | 4,791 | 2.86 | 2,317 | 1.39 | 1,352 | 0.81 | 658 | 0.39 | 862 | 0.52 | 345 | 0.21 | 102 | 0.06 | 55 | 0.03 | 68 | 0.04 | 42 | 0.03 | 11 | 0.01 | 694 | 0.41 | 467 | 0.28 | 275 | 0.16 | 167,254 |
| Plymouth | 37,270 | 38.64 | 23,254 | 24.11 | 14,214 | 14.74 | 13,390 | 13.88 | 3,352 | 3.48 | 1,400 | 1.45 | 933 | 0.97 | 566 | 0.59 | 789 | 0.82 | 164 | 0.17 | 60 | 0.06 | 53 | 0.05 | 59 | 0.06 | 33 | 0.03 | 19 | 0.02 | 468 | 0.49 | 306 | 0.32 | 127 | 0.13 | 96,457 |
| Suffolk | 47,608 | 29.79 | 48,636 | 30.43 | 41,885 | 26.21 | 13,745 | 8.60 | 2,513 | 1.57 | 965 | 0.60 | 819 | 0.51 | 974 | 0.61 | 377 | 0.24 | 312 | 0.20 | 213 | 0.13 | 103 | 0.06 | 70 | 0.04 | 59 | 0.04 | 52 | 0.03 | 464 | 0.29 | 818 | 0.51 | 196 | 0.12 | 159,809 |
| Worcester | 47,482 | 35.18 | 39,239 | 29.08 | 22,132 | 16.40 | 15,304 | 11.34 | 4,393 | 3.26 | 1,757 | 1.30 | 1,164 | 0.86 | 739 | 0.55 | 1,074 | 0.80 | 266 | 0.20 | 115 | 0.09 | 52 | 0.04 | 81 | 0.06 | 45 | 0.03 | 36 | 0.03 | 569 | 0.42 | 349 | 0.26 | 160 | 0.12 | 134,957 |
| Total | 473,861 | 33.41 | 376,990 | 26.58 | 303,864 | 21.43 | 166,200 | 11.72 | 38,400 | 2.71 | 17,297 | 1.22 | 10,548 | 0.74 | 6,923 | 0.49 | 6,762 | 0.48 | 2,708 | 0.19 | 1,257 | 0.09 | 675 | 0.05 | 617 | 0.04 | 426 | 0.03 | 305 | 0.02 | 5,345 | 0.38 | 4,061 | 0.29 | 1,941 | 0.14 | 1,418,180 |

## Analysis

According to exit polls, Biden overwhelmingly won voters over 50, followed by Warren, while Sanders did the same with voters under 40. Voters between the ages of 40 and 49 years old were split between Biden (32%) and Sanders (31%). Biden also won white voters by 8 points over Sanders and African-American voters by 7 points, while Sanders won the Hispanic/Latino vote over Biden by 13 points. Sanders also won the LGBTQ+ voters over Warren and Biden by 12 and 23 points respectively.
Biden carried 7 of the state's 9 congressional districts: the 1st, 3rd, 4th (where Biden got his widest margin of victory), 5th, 6th, 8th, and the 9th. Sanders carried the remaining districts. The one comprised by the Boston-Metro Area showed the best performance for Sanders, and was the only district where Warren finished second. This was a change from the pre-election prediction that Biden would do better in this district and Sanders worse.