303,288
Active registered voters
46
Precincts
164,206
Supervoters (54.14%)
5
Presidential cycles of results
Data as of June 10, 2026 · refreshed automatically from the official New York voter file
Onondaga County, New York has 303,288 active registered voters — 26.9% Republican, 36.8% Democratic, and 30.3% with no party affiliation, as of June 2026.
Party registration
Democratic 111,596 · Republican 81,563 · No Party Affiliation 91,933 · Other parties 18,196
Source: Motion51 voter database — official New York voter file
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | 24 | 5,330 | 3,209 | 60.21% |
| 2 | 32 | 1,415 | 851 | 60.14% |
| 3 | 36 | 587 | 352 | 59.97% |
| 4 | 35 | 870 | 520 | 59.77% |
| 5 | 18 | 6,247 | 3,718 | 59.52% |
| 6 | 34 | 878 | 522 | 59.45% |
| 7 | 27 | 2,359 | 1,399 | 59.3% |
| 8 | 12 | 8,709 | 5,158 | 59.23% |
| 9 | 46 | 920 | 540 | 58.7% |
| 10 | 44 | 1,040 | 609 | 58.56% |
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 Onondaga County voted for president
■ Democratic % ■ Republican % · 2024 total votes cast: 227,071
Election results are public records.
Source: Official county canvasses via MIT Election Data + Science Lab
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