New York·NY·FIPS 36059

Nassau County

Voted Republican in 2024 · 712,299 votes cast

About Nassau County

Nassau County is a densely populated and affluent suburban county located on Long Island, immediately to the east of New York City, bordering the Long Island Sound on the north and the open Atlantic Ocean to the south. As of the 2020 United States census, Nassau County's population was 1,395,774, making it the sixth-most populous county in the State of New York and 29th in the nation, reflecting an increase of 56,242 (+4.2%) from the 1,339,532 residents enumerated at the 2010 census. By 2025, Nassau's population was approaching 1.4 million, driven by a high influx of Asians. The county seat is Mineola, while Nassau County's largest and most populous town is Hempstead.

2024 Presidential Results

All candidates · Nassau County, New York

Donald J Trump(Republican)

51.7%368,117

Won by 29,693 votes

Kamala D Harris(Democrat)

47.5%338,424

Other(Other)

0.8%5,391

Chase Oliver(Libertarian)

0.1%367

Margin History

Red = Republican, Blue = Democratic

2024R+4.2

2020D+9.5

2016D+5.9

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Swung Right in 2024

Nassau County shifted 13.6 points toward Republicans compared to 2020. Voter turnout decreased by 3.5%.

Nassau County — Local Discussion

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What does Nassau County really think?

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