Connecticut 15th State Senate District
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | +11.3% |
| 2008 | +23.8% |
| 2012 | +25.3% |
| 2016 | +14.2% |
| 2020 | +15.2% |
| 2024 | +6.5% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 52.6%Harris17,404 | 46.2%Trump15,269 | 1.2% | D+6.5 | R+8.7 | D+7.9 | 33,066 | |
| D | 57.0%Biden19,735 | 41.8%Trump14,484 | 1.1% | D+15.2 | D+1.0 | D+10.7 | 34,612 | |
| D | 55.4%Clinton17,763 | 41.3%Trump13,219 | 3.3% | D+14.2 | R+11.2 | D+12.1 | 32,036 | |
| D | 62.2%Obama21,040 | 36.8%Romney12,463 | 1.0% | D+25.3 | D+1.5 | D+21.5 | 33,850 | |
| D | 61.2%Obama20,819 | 37.4%McCain12,716 | 1.4% | D+23.8 | D+12.5 | D+16.5 | 34,028 | |
| D | 54.8%Kerry17,747 | 43.5%Bush14,093 | 1.7% | D+11.3 | — | D+13.7 | 32,399 |
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of R+10.3, Connecticut Senate District 15 sits well outside the state's Democratic-leaning norm, signaling a suburban or exurban constituency that has consistently diverged from statewide trends.
Across the recorded series it reached a Democratic high of 25.3 points in 2012. Between 2020 and 2024 the district moved 8.7 points toward the Republican candidate; the 2024 margin was 6.5 points.
A population of 104,093, a 37% non-Hispanic-white share, and a median household income of $55,225 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 6 and State Senate District 13.
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 15th State Senate District. Akashic. https://akashic.app/sld-upper/09015/. Accessed May 20, 2026. License: CC BY 4.0.