Nassau, New York — Presidential Election Results
Nassau, New York has voted Democratic in 6 of the last 7 presidential elections on record (2000–2024). It most recently flipped to Republican in 2024. In 2024, it was 16.9 pts more Rep. 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 | 341,610 | 57.9% | 19.4 pts (114,656 votes) | 589,707 | — | 6.0 pts more Rep. |
| 2004 | John Kerry | Democratic | 317,283 | 51.3% | 7.1 pts (43,781 votes) | 618,343 | -12.8 pts | 12.2 pts more Rep. |
| 2008 | Barack Obama | Democratic | 342,067 | 53.8% | 8.4 pts (53,309 votes) | 635,414 | +1.0 pts | 18.5 pts more Rep. |
| 2012 | Barack Obama | Democratic | 294,661 | 51.9% | 10.0 pts (56,799 votes) | 568,151 | +2.2 pts | 21.4 pts more Rep. |
| 2016 | Hillary Clinton | Democratic | 326,088 | 51.2% | 5.9 pts (37,775 votes) | 636,967 | -4.5 pts | 17.4 pts more Rep. |
| 2020 | Joseph R Biden Jr | Democratic | 396,504 | 53.7% | 9.5 pts (69,788 votes) | 738,369 | +3.5 pts | 13.8 pts more Rep. |
| 2024 | Donald J Trump | Republican | 368,117 | 51.7% | 4.2 pts (29,693 votes) | 712,299 | -13.9 pts | 16.9 pts more Rep. |
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 | 1,336,713 | 44.1% of population |
| 2004 | 1,337,964 | 46.2% of population |
| 2008 | 1,325,129 | 48.0% of population |
| 2012 | 1,349,616 | 42.1% of population |
| 2016 | 1,355,952 | 47.0% of population |
| 2020 | 1,390,584 | 53.1% of population |
| 2024 | 1,392,438 | 51.2% of population |
Trend
Between 2000 and 2024, the two-party presidential margin in Nassau shifted 24.4 points toward the Republican 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
Nassau has matched the national popular winner in 4 of the last 7 presidential elections (57%), and New York's own statewide winner in 6 of 7 (86%). Compare every county on the bellwether counties page.
Related Pages
Other New York Counties
Frequently Asked Questions
How has Nassau voted in presidential elections since 2000?
Since 2000, Nassau has voted Democratic in 6 of 7 recorded presidential elections and Republican in 1 of 7, based on county-level returns through 2024.
What was the closest presidential election in Nassau?
Nassau's closest recorded margin was in 2024, when Donald J Trump (Republican) won by 4.2 points (29,693 votes) out of 712,299 total votes cast.
Has Nassau ever flipped between parties?
Yes. Nassau changed which party won the county in: 2024, based on the 2000-2024 record on this page.
What is the largest presidential election margin recorded in Nassau?
The widest margin on record for Nassau was in 2000, when Al Gore (Democratic) won by 20.2 points.
How many votes were cast in Nassau relative to its population?
In 2024, 712,299 votes were recorded in Nassau against a total population of 1,392,438 (51.2% 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 Nassau a presidential bellwether county?
Nassau has matched the national popular winner in 4 of the last 7 presidential elections (57%), and New York's own statewide winner in 6 of 7 (86%).