Connecticut 9th State Senate District
Akashic| Kamala Harris ✓Democratic | 56.8% | 29,929 |
|---|---|---|
| Donald TrumpRepublican | 41.4% | 21,828 |
| Jill SteinGreen | 1.9% | 978 |
County-level results (4 counties) — table
| County | Winner | Margin |
|---|---|---|
| Capitol Planning Region, CT | Democratic | D+20.1 |
| Lower Connecticut River Valley Planning Region, CT | Democratic | D+12.8 |
| Naugatuck Valley Planning Region, CT | Democratic | D+11.2 |
| Northwest Hills Planning Region, CT | Republican | R+5.4 |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 56.8%Harris29,929 | 41.4%Trump21,828 | 1.9%Stein978 | 52,735 | ||
| D | 59.3%Biden31,890 | 39.1%Trump21,043 | 1.6%Jorgensen858 | 53,791 | ||
| D | 54.6%Clinton26,470 | 40.4%Trump19,595 | 4.9%Johnson2,380 | 48,445 | ||
| D | 61.3%Obama27,497 | 38.7%Romney17,359 | 0.0% | 44,856 | ||
| D | 63.6%Obama31,646 | 34.9%McCain17,373 | 1.5%Nader749 | 49,768 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +28.7% |
| 2012 | +22.6% |
| 2016 | +14.2% |
| 2020 | +20.2% |
| 2024 | +15.4% |
State legislative officeholder from OpenStates nightly current-legislator data.
With roughly 101,000 residents and a 2024 presidential margin of D+11.9, this district sits comfortably in Connecticut's Democratic column while remaining competitive enough to draw serious campaign attention.
Across the recorded series it reached a Democratic high of 28.7 points in 2008. Between 2020 and 2024 the district moved 4.8 points toward the Republican candidate; the 2024 margin was 15.4 points.
A population of 101,245, a 71% non-Hispanic-white share, and a median household income of $93,143 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 19 and State Senate District 4.
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 →
Connecticut 9th State Senate District. Akashic. https://akashic.app/sld-upper/09009/. Accessed May 20, 2026. License: CC BY 4.0.