Connecticut 12th State Senate District
Akashic| Kamala Harris ✓Democratic | 56.1% | 35,041 |
|---|---|---|
| Donald TrumpRepublican | 42.3% | 26,439 |
| Jill SteinGreen | 1.5% | 950 |
County-level results (3 counties) — table
| County | Winner | Margin |
|---|---|---|
| Lower Connecticut River Valley Planning Region, CT | Democratic | D+12.8 |
| Naugatuck Valley Planning Region, CT | Democratic | D+11.2 |
| South Central Connecticut Planning Region, CT | Democratic | D+11.9 |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 56.1%Harris35,041 | 42.3%Trump26,439 | 1.5%Stein950 | 62,430 | ||
| D | 57.7%Biden36,914 | 40.8%Trump26,089 | 1.5%Jorgensen936 | 63,939 | ||
| D | 52.1%Clinton29,521 | 43.9%Trump24,892 | 4.0%Johnson2,249 | 56,662 | ||
| D | 54.8%Obama26,299 | 45.2%Romney21,695 | 0.0% | 47,994 | ||
| D | 57.6%Obama32,114 | 41.2%McCain22,944 | 1.2%Nader672 | 55,730 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +16.5% |
| 2012 | +9.6% |
| 2016 | +8.2% |
| 2020 | +16.9% |
| 2024 | +13.8% |
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of D+32, this district anchors the heavily Democratic end of Connecticut's state senate map, likely reflecting dense urban settlement and a Democratic voter registration base.
Across the recorded series it reached a Democratic high of 16.9 points in 2020. Between 2020 and 2024 the district moved 3.2 points toward the Republican candidate; the 2024 margin was 13.8 points.
A population of 97,405, a 88% non-Hispanic-white share, and a median household income of $122,925 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 14 and State Senate District 33.
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 12th State Senate District. Akashic. https://akashic.app/sld-upper/09012/. Accessed May 20, 2026. License: CC BY 4.0.