Akashic
1892–2024
Akashic
Connecticut 20th State Senate District
presidential margin
2008D+26.22012D+22.22016D+12.12020D+21.52024D+18.1
full record · 2008 → 2024
D+18.1
2024
median income$91,657U.S. $80,734 · CT $95,781
median age43.7U.S. 39.1 · CT 41.2
poverty rate9.8%U.S. 12.5% · CT 10.0%
bachelor’s+ (25+)36.5%U.S. 35.6% · CT 42.5%
non-english14.9%U.S. 22.3% · CT 23.4%
race · ethnicity · ancestry
Irish15.6%
Italian14.4%
English12.7%
Puerto Rican7.3%
Mexican1.9%
Dominican1.4%
African American†4.1%
Haitian1.1%
Jamaican0.6%
Chinese1.3%
Asian Indian0.8%
Filipino0.7%
religion

Religious adherence is published only at the county level (U.S. Religion Census). See Southeastern Connecticut Planning Region.

American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.

Connecticut 20th State Senate District

Akashic
Connecticut 20th State Senate DistrictHarrisD+18.1
2024
2024 presidential margin for Connecticut 20th State Senate DistrictThe boundary of Connecticut 20th State Senate District, filled by its 2024 presidential margin (D+18.1), over faint outlines of the counties it is drawn from.Connecticut 20th State Senate District · D+18.1
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic58.2%29,583
Donald TrumpRepublican40.1%20,402
Jill SteinGreen1.7%861
D+60
R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 3 counties it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
County-level results (3 counties) — table
2024 presidential result by county for Connecticut 20th State Senate District — winner and D-vs-R margin.
CountyWinnerMargin
Lower Connecticut River Valley Planning Region, CTDemocraticD+12.8
Northeastern Connecticut Planning Region, CTRepublicanR+9.4
Southeastern Connecticut Planning Region, CTDemocraticD+10.7
5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
D
58.2%Harris29,583
40.1%Trump20,402
1.7%Stein861
+18.1%
50,846
D
59.8%Biden31,228
38.3%Trump19,986
1.9%Jorgensen973
+21.5%
52,187
D
53.5%Clinton24,790
41.3%Trump19,162
5.2%Johnson2,396
+12.1%
46,348
D
61.1%Obama25,914
38.9%Romney16,491
0.0%
+22.2%
42,405
D
62.5%Obama30,114
36.3%McCain17,496
1.2%Nader578
+26.2%
48,188
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: +18.1% in 2024.+18.1%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008+26.2%
2012+22.2%
2016+12.1%
2020+21.5%
2024+18.1%
DemocraticRepublican
current representation
Current officeholders
DMartha MarxState Senate · 20

State legislative officeholder from OpenStates nightly current-legislator data.

Source · OpenStates current legislator CSV.

With a 2024 presidential margin of D+35.9, this district ranks among the most lopsided in the state, suggesting a dense, urban-anchored electorate where statewide and local contests rarely remain competitive.

Across the recorded series it reached a Democratic high of 26.2 points in 2008. Between 2020 and 2024 the district moved 3.5 points toward the Republican candidate; the 2024 margin was 18.1 points.

A population of 96,136, a 74% non-Hispanic-white share, and a median household income of $91,657 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 13 and State Senate District 18.

Political twins — state-senate districts

The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

State Senate District 13
Connecticut
90.3twin score
2008–2020 trajectoryelasticity≠ Puerto Rican ancestry
State Senate District 18
Connecticut
89.5twin score
elasticityItalian ancestryPolish ancestry≠ Puerto Rican ancestry
State Senate District 19
Connecticut
88.1twin score
elasticityItalian ancestry2008–2012 trajectory≠ % unaffiliated

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 →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Connecticut 20th State Senate District. Akashic. https://akashic.app/sld-upper/09020/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Places within Connecticut 20th State Senate District

counties it covers1
Southeastern Connecticut Planning Region

Frequently asked questions

How did Connecticut 20th State Senate District vote in 2024?
In 2024, Connecticut 20th State Senate District voted Democratic by 18.1 points (D+18.1), carried by the Democratic candidate. Out of 50,846 votes cast, 29,583 went Democratic and 20,402 went Republican.
How many people live in Connecticut 20th State Senate District?
Connecticut 20th State Senate District has a population of 96,136 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Connecticut 20th State Senate District?
Median household income in Connecticut 20th State Senate District is $91,657 — above the national median of $80,734. The Connecticut state median is $95,781.
What is the political history of Connecticut 20th State Senate District?
Akashic tracks 5 presidential elections in Connecticut 20th State Senate District from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican.