1,008,838
Active registered voters
132
Precincts
485,263
Supervoters (48.1%)
5
Presidential cycles of results
Data as of June 10, 2026 · refreshed automatically from the official New York voter file
Nassau County, New York has 1,008,838 active registered voters — 30.4% Republican, 37.4% Democratic, and 28.5% with no party affiliation, as of June 2026.
Party registration
Democratic 377,804 · Republican 306,243 · No Party Affiliation 287,408 · Other parties 37,383
Source: Motion51 voter database — official New York voter file
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | 104 | 1,317 | 753 | 57.18% |
| 2 | 117 | 1,442 | 808 | 56.03% |
| 3 | 303 | 1,232 | 674 | 54.71% |
| 4 | 34 | 11,691 | 6,353 | 54.34% |
| 5 | 108 | 1,813 | 984 | 54.27% |
| 6 | 302 | 2,035 | 1,103 | 54.2% |
| 7 | 99 | 3,554 | 1,901 | 53.49% |
| 8 | 100 | 4,634 | 2,469 | 53.28% |
| 9 | 301 | 855 | 455 | 53.22% |
| 10 | 74 | 6,039 | 3,203 | 53.04% |
Supervoters are active registered voters who cast a ballot in at least 3 of the last 4 November general elections (2018–2024). Percentages are precinct totals from the official state voter file — no individual voter information is shown. Precincts with fewer than 400 active voters are excluded.
Source: Motion51 voter database — official New York voter file
How Nassau County voted for president
■ Democratic % ■ Republican % · 2024 total votes cast: 706,541
Election results are public records.
Source: Official county canvasses via MIT Election Data + Science Lab
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