New Castle, Delaware
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | +33.8% |
| 2008 | +50.5% |
| 2012 | +44.4% |
| 2016 | +39.1% |
| 2020 | +44.2% |
| 2024 | +42.6% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 70.8%Harris2,052 | 28.3%Trump819 | 0.9% | D+42.6 | R+1.6 | D+44.0 | 2,897 | |
| D | 71.4%Biden2,103 | 27.2%Trump801 | 1.4% | D+44.2 | D+5.1 | D+39.7 | 2,946 | |
| D | 67.4%Clinton1,812 | 28.3%Trump761 | 4.3% | D+39.1 | R+5.3 | D+37.0 | 2,688 | |
| D | 71.7%Obama1,845 | 27.3%Romney702 | 1.0% | D+44.4 | R+6.1 | D+40.6 | 2,573 | |
| D | 74.6%Obama1,961 | 24.1%McCain633 | 1.3% | D+50.5 | D+16.7 | D+43.2 | 2,629 | |
| D | 66.8%Kerry1,609 | 33.0%Bush795 | 0.2% | D+33.8 | — | D+36.2 | 2,410 |
New Castle's colonial-era streetscape and working-class riverfront neighborhoods produce a mixed electorate that has swung between parties in recent cycles, making its modest precinct count a reliable bellwether within New Castle County.
Across the recorded series it reached a Democratic high of 50.5 points in 2008. Between 2020 and 2024 the city moved 1.6 points toward the Republican candidate; the 2024 margin was 42.6 points.
A population of 5,579, a 65% non-Hispanic-white share, and a median household income of $89,205 describe the city. The city's voting pattern over the last decade is most similar to that of Sebastopol and Elkins Park.
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
New Castle, Delaware. Akashic. https://akashic.app/city/1050800/. Accessed May 20, 2026. License: CC BY 4.0.