New Castle, Delaware — Presidential Election Results
New Castle, Delaware has voted Democratic in 7 of the last 7 presidential elections on record (2000–2024). In 2024, it was 18.1 pts more Dem. than Delaware 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. Delaware |
|---|---|---|---|---|---|---|---|---|
| 2000 | Al Gore | Democratic | 127,539 | 59.9% | 23.0 pts (48,952 votes) | 212,995 | — | 10.3 pts more Dem. |
| 2004 | John Kerry | Democratic | 146,171 | 60.5% | 22.0 pts (53,101 votes) | 241,444 | -1.6 pts | 14.5 pts more Dem. |
| 2008 | Barack Obama | Democratic | 178,768 | 69.7% | 40.6 pts (104,160 votes) | 256,417 | +18.9 pts | 15.8 pts more Dem. |
| 2012 | Barack Obama | Democratic | 167,082 | 66.3% | 34.1 pts (85,852 votes) | 252,012 | -6.5 pts | 15.7 pts more Dem. |
| 2016 | Hillary Clinton | Democratic | 162,919 | 62.1% | 29.5 pts (77,394 votes) | 262,391 | -3.4 pts | 19.2 pts more Dem. |
| 2020 | Joseph R Biden Jr | Democratic | 195,034 | 67.8% | 37.1 pts (106,670 votes) | 287,633 | +6.5 pts | 18.4 pts more Dem. |
| 2024 | Kamala D Harris | Democratic | 180,700 | 65.5% | 32.6 pts (89,832 votes) | 275,917 | -4.6 pts | 18.1 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 | 501,837 | 42.4% of population |
| 2004 | 518,944 | 46.5% of population |
| 2008 | 533,958 | 48.0% of population |
| 2012 | 544,848 | 46.3% of population |
| 2016 | 555,058 | 47.3% of population |
| 2020 | 570,957 | 50.4% of population |
| 2024 | 588,093 | 46.9% of population |
Trend
Between 2000 and 2024, the two-party presidential margin in New Castle shifted 9.3 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
New Castle has matched the national popular winner in 3 of the last 7 presidential elections (43%), and Delaware's own statewide winner in 7 of 7 (100%). Compare every county on the bellwether counties page.
Related Pages
Other Delaware Counties
Frequently Asked Questions
How has New Castle voted in presidential elections since 2000?
Since 2000, New Castle 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 New Castle?
New Castle's closest recorded margin was in 2004, when John Kerry (Democratic) won by 22.2 points (53,101 votes) out of 241,444 total votes cast.
Has New Castle ever flipped between parties?
Not in the 2000-2024 record on this page -- New Castle has voted for the same party in every recorded presidential election in that span.
What is the largest presidential election margin recorded in New Castle?
The widest margin on record for New Castle was in 2008, when Barack Obama (Democratic) won by 41.1 points.
How many votes were cast in New Castle relative to its population?
In 2024, 275,917 votes were recorded in New Castle against a total population of 588,093 (46.9% 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 New Castle a presidential bellwether county?
New Castle has matched the national popular winner in 3 of the last 7 presidential elections (43%), and Delaware's own statewide winner in 7 of 7 (100%).