Middlesex County, MA
MA · Presidential Elections 1892–2024
Middlesex County, MA (Massachusetts) voted D+39.2 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 554,471 votes (68.05%) to 235,118 (28.85%) for Trump.
This represents a R+5.7% swing toward Republicans compared to 2020. Middlesex County is classified as a deep Democratic county. Middlesex County has voted Democratic in every presidential election since 1960. The county has a population of approximately 1,638,365.
Open in Cartographer
Interactive map with county profile in split-screen view
Quick Stats
Demographics
Community Profile
Religious Composition
Source: Religion Census 2020Ancestry Groups
Source: Census ACSTop reported ancestry groups (compared to national average).
Age Distribution
Employment by Industry
Census ACSPresidential Elections
Presidential Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 68.0%(554,471) | 28.9%(235,118) | D+39.2 | R+5.7 |
| 2020 | 71.0%(617,196) | 26.1%(226,956) | D+44.9 | D+7.7 |
| 2016 | 64.3%(520,360) | 27.2%(219,793) | D+37.2 | D+10.1 |
| 2012 | 62.6%(471,804) | 35.5%(267,321) | D+27.1 | R+3.0 |
| 2008 | 64.0%(464,484) | 33.9%(245,766) | D+30.1 | D+0.7 |
| 2004 | 64.0%(440,862) | 34.5%(237,815) | D+29.5 | R+1.7 |
| 2000 | 61.5%(404,043) | 30.3%(198,914) | D+31.2 | R+5.1 |
| 1996 | 63.4%(398,190) | 27.1%(169,926) | D+36.3 | D+14.5 |
| 1992 | 49.9%(343,994) | 28.1%(193,703) | D+21.8 | D+11.1 |
| 1988 | 54.6%(361,563) | 43.8%(290,352) | D+10.7 | D+9.9 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Middlesex County, MA • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 66.5%(532,646) | 33.3%(266,265) | D+33.3 | R+11.3 |
| 2020 | 72.0%(611,485) | 27.4%(232,739) | D+44.6 | D+8.9 |
| 2018 | 66.1%(440,901) | 30.4%(202,871) | D+35.7 | D+3.6 |
| 2014 | 65.9%(337,553) | 33.9%(173,537) | D+32.0 | D+9.1 |
| 2013 | 61.2%(186,651) | 38.3%(116,716) | D+22.9 | D+11.1 |
| 2012 | 55.9%(420,142) | 44.0%(331,004) | D+11.9 | D+7.6 |
| 2010 | 51.7%(283,259) | 47.4%(259,768) | D+4.3 | R+33.4 |
| 2008 | 67.3%(476,434) | 29.7%(209,940) | D+37.7 | R+4.5 |
| 2006 | 71.0%(369,685) | 28.8%(150,257) | D+42.1 | R+36.9 |
| 2002 | 79.0%(395,087) | 0.0%(0) | D+79.0 | D+15.5 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 69.6%(426,054) | 27.7%(169,707) | D+41.9 | D+67.0 |
| 2018 | 37.3%(246,197) | 62.4%(411,687) | R+25.1 | R+30.0 |
| 2014 | 50.3%(264,319) | 45.4%(238,750) | D+4.9 | R+5.4 |
| 2010 | 51.2%(283,221) | 40.9%(226,272) | D+10.3 | R+11.1 |
| 2006 | 56.2%(299,749) | 34.8%(185,738) | D+21.4 | D+26.1 |
| 2002 | 44.6%(241,934) | 49.4%(267,579) | R+4.7 | R+5.2 |
| 1998 | 49.4%(232,302) | 48.9%(230,004) | D+0.5 | D+40.7 |
| 1994 | 29.5%(159,190) | 69.7%(376,503) | R+40.2 | R+30.0 |
| 1990 | 43.4%(259,059) | 53.7%(320,188) | R+10.2 | R+46.7 |
| 1986 | 68.2%(291,618) | 31.7%(135,699) | D+36.5 | D+10.1 |
Source: Official state election returns via MIT Election Data + Science Lab