Massachusetts·MA·FIPS 25017

Middlesex County

Voted Democratic in 2024 · 814,832 votes cast

About Middlesex County

Middlesex County is a county located in the Commonwealth of Massachusetts, United States, one of fourteen in the state. As of the 2020 census, the population was 1,632,002, making it the most populous county in both Massachusetts and New England and the 20th most populous county in the United States. This makes the county the most populous county on the East Coast outside of New York or Florida. Middlesex County is one of two U.S. counties to be amongst the top 25 counties with the highest household income and the 25 most populated counties. It is included in the Census Bureau's Boston–Cambridge–Newton, MA–NH Metropolitan Statistical Area. As part of the 2020 United States census, the Commonwealth's mean center of population for that year was geo-centered in Middlesex County, in the town of Natick.

2024 Presidential Results

All candidates · Middlesex County, Massachusetts

Kamala D Harris(Democrat)

68.0%554,471

Won by 319,353 votes

Donald J Trump(Republican)

28.9%235,118

Other(Other)

2.5%20,702

Chase Oliver(Libertarian)

0.6%4,541

Margin History

Red = Republican, Blue = Democratic

2024D+39.2

2020D+44.9

2016D+38.3

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Swung Right in 2024

Middlesex County shifted 5.7 points toward Republicans compared to 2020. Voter turnout decreased by 6.3%.

Middlesex County — Local Discussion

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What does Middlesex County really think?

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Election data: MIT Election Data Science Lab, Harvard Dataverse (CC BY 4.0)