Onondaga, New York — Presidential Election Results
Onondaga, New York has voted Democratic in 7 of the last 7 presidential elections on record (2000–2024). In 2024, it was 4.6 pts more Dem. than New York overall.
Jump to year: 2000 · 2004 · 2008 · 2012 · 2016 · 2020 · 2024
Full Election History, 2000–2024
| Year | Winner | Party | Votes | Vote Share | Margin | Total Votes Cast | Swing | Vs. New York |
|---|---|---|---|---|---|---|---|---|
| 2000 | Al Gore | Democratic | 109,896 | 54.0% | 12.9 pts (26,218 votes) | 203,629 | — | 12.6 pts more Rep. |
| 2004 | John Kerry | Democratic | 112,618 | 52.5% | 11.4 pts (24,495 votes) | 214,589 | -1.3 pts | 7.5 pts more Rep. |
| 2008 | Barack Obama | Democratic | 129,317 | 59.3% | 20.3 pts (44,345 votes) | 218,194 | +8.5 pts | 6.3 pts more Rep. |
| 2012 | Barack Obama | Democratic | 117,470 | 57.4% | 23.5 pts (48,113 votes) | 204,717 | +5.1 pts | 6.3 pts more Rep. |
| 2016 | Hillary Clinton | Democratic | 112,337 | 53.9% | 13.8 pts (28,688 votes) | 208,440 | -11.1 pts | 8.9 pts more Rep. |
| 2020 | Joseph R Biden Jr | Democratic | 138,894 | 58.9% | 20.5 pts (48,275 votes) | 235,686 | +6.4 pts | 2.4 pts more Rep. |
| 2024 | Kamala D Harris | Democratic | 133,155 | 58.3% | 17.2 pts (39,239 votes) | 228,381 | -3.8 pts | 4.6 pts more Dem. |
Population Context
Total Census Bureau population estimate for the county that year, and recorded votes as a share of that total population. This is a population-based figure, not a turnout rate against eligible or registered voters, which this site does not calculate.
| Year | County Population | Votes Cast (% of Population) |
|---|---|---|
| 2000 | 458,034 | 44.5% of population |
| 2004 | 461,412 | 46.5% of population |
| 2008 | 463,472 | 47.1% of population |
| 2012 | 467,030 | 43.8% of population |
| 2016 | 464,109 | 44.9% of population |
| 2020 | 474,218 | 49.7% of population |
| 2024 | 469,812 | 48.6% of population |
Trend
Between 2000 and 2024, the two-party presidential margin in Onondaga shifted 3.7 points toward the Democratic candidate, based on recorded county returns. This reflects the vote totals in this dataset only; no claim is made here about the causes of that shift.
Margin Over Time
Democratic candidate's margin (percentage points, two-party vote share). Positive values favor the Democratic candidate; negative values favor the Republican candidate.
Bellwether Status
Onondaga has matched the national popular winner in 3 of the last 7 presidential elections (43%), and New York's own statewide winner in 7 of 7 (100%). Compare every county on the bellwether counties page.
Related Pages
Other New York Counties
Frequently Asked Questions
How has Onondaga voted in presidential elections since 2000?
Since 2000, Onondaga has voted Democratic in 7 of 7 recorded presidential elections and Republican in 0 of 7, based on county-level returns through 2024.
What was the closest presidential election in Onondaga?
Onondaga's closest recorded margin was in 2004, when John Kerry (Democratic) won by 12.2 points (24,495 votes) out of 214,589 total votes cast.
Has Onondaga ever flipped between parties?
Not in the 2000-2024 record on this page -- Onondaga has voted for the same party in every recorded presidential election in that span.
What is the largest presidential election margin recorded in Onondaga?
The widest margin on record for Onondaga was in 2012, when Barack Obama (Democratic) won by 25.8 points.
How many votes were cast in Onondaga relative to its population?
In 2024, 228,381 votes were recorded in Onondaga against a total population of 469,812 (48.6% of the total population). This is a population-based figure, not a turnout rate against eligible or registered voters, which this site does not calculate.
Is Onondaga a presidential bellwether county?
Onondaga has matched the national popular winner in 3 of the last 7 presidential elections (43%), and New York's own statewide winner in 7 of 7 (100%).