New York·NY·FIPS 36099

Seneca County

Voted Republican in 2024 · 15,034 votes cast

About Seneca County

Seneca County is a county in the U.S. state of New York. As of the 2020 census, the population was 33,814. The primary county seat is Waterloo, moved there from the original county seat of Ovid in 1819. It became a two-shire county in 1822, which currently remains in effect and uses both locations as county seats although the majority of Seneca County administrative offices are located in Waterloo. Therefore, most political sources list only Waterloo as the county seat. The county's name comes from the Seneca Nation of the Haudenosaunee (Iroquois), who occupied part of the region. The county is part of the Finger Lakes region of the state.

2024 Presidential Results

All candidates · Seneca County, New York

Donald J Trump(Republican)

55.7%8,379

Won by 1,769 votes

Kamala D Harris(Democrat)

44.0%6,610

Other(Other)

0.2%33

Chase Oliver(Libertarian)

0.1%12

Margin History

Red = Republican, Blue = Democratic

2024R+11.8

2020R+9.0

2016R+11.0

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Swung Right in 2024

Seneca County shifted 2.8 points toward Republicans compared to 2020. Voter turnout decreased by 4.4%.

Seneca County — Local Discussion

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What does Seneca County really think?

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