Delaware 9th State Senate District
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | +19.9% |
| 2008 | +38.5% |
| 2012 | +28.4% |
| 2016 | +20.6% |
| 2020 | +29.5% |
| 2024 | +23.9% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 61.1%Harris11,928 | 37.2%Trump7,259 | 1.8% | D+23.9 | R+5.6 | D+25.4 | 19,532 | |
| D | 63.9%Biden13,609 | 34.3%Trump7,316 | 1.8% | D+29.5 | D+8.9 | D+25.1 | 21,306 | |
| D | 57.3%Clinton11,229 | 36.7%Trump7,190 | 6.0% | D+20.6 | R+7.8 | D+18.5 | 19,587 | |
| D | 63.3%Obama12,043 | 34.9%Romney6,638 | 1.8% | D+28.4 | R+10.1 | D+24.6 | 19,027 | |
| D | 68.5%Obama13,380 | 29.9%McCain5,846 | 1.6% | D+38.5 | D+18.7 | D+31.3 | 19,546 | |
| D | 59.2%Kerry10,945 | 39.3%Bush7,272 | 1.4% | D+19.9 | — | D+22.3 | 18,483 |
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Delaware's 9th Senate district, anchored in the Dover area, has leaned reliably Democratic in recent cycles, with the 2024 presidential margin landing at D+15.4 — a spread that reflects the district's mix of urban core voters and surrounding Kent County communities.
Across the recorded series it reached a Democratic high of 38.5 points in 2008. Between 2020 and 2024 the district moved 5.6 points toward the Republican candidate; the 2024 margin was 23.9 points.
A population of 44,872, a 58% non-Hispanic-white share, and a median household income of $77,339 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 7 and State Senate District 11.
The state-senate districts 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.
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 →
Delaware 9th State Senate District. Akashic. https://akashic.app/sld-upper/10009/. Accessed May 20, 2026. License: CC BY 4.0.