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Westchester County, New York

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639,756
Active registered voters
325,759
Supervoters (50.92%)
5
Presidential cycles of results

Data as of June 19, 2026 · refreshed automatically from the official New York voter file

Westchester County, New York has 639,756 active registered voters — 19.2% Republican, 49.5% Democratic, and 27.4% with no party affiliation, as of June 2026.

Party registration

DEM 49.5%
REP 19.2%
NPA 27.4%
Democratic 316,902 · Republican 122,825 · No Party Affiliation 175,347 · Other parties 24,682
Source: Motion51 voter database — official New York voter file

How Westchester County voted for president

63.4
35.8
2008
60.4
38.2
2012
64.9
32.1
2016
67.6
31.3
2020
63.1
36.9
2024
■ Democratic %   ■ Republican %  ·  2024 total votes cast: 455,229

Election results are public records.

Source:  Official county canvasses via MIT Election Data + Science Lab

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Also see: Motion51 in New York · How to run for office in Westchester County · Pricing