- Lead
- 321
- Total
- 13,235
- vs nation
- D+3.9
Connecticut 90th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 343
- Total
- 14,889
- vs nation
- R+2.2
- Lead
- 943
- Total
- 13,010
- vs nation
- R+9.3
- Lead
- 259
- Total
- 12,094
- vs nation
- R+1.7
- Lead
- 561
- Total
- 12,693
- vs nation
- R+2.9
- Lead
- 953
- Total
- 12,457
- vs nation
- R+5.2
- Lead
- 386
- Total
- 11,433
- vs nation
- D+2.9
- Lead
- 560
- Total
- 11,003
- vs nation
- R+3.4
Key facts
- 2024 presidential margin
- D+2.4MIT Election Lab
- Population
- 22,9592024 5-year
- Population density
- 584 / sq mi2024 5-year · TIGER/Line
- Land area
- 39.3 sq miTIGER/Line
- Median household income
- $116,1722024 5-year
- White (non-Hispanic)
- 84.9%2024 5-year
- Black
- 1.3%2024 5-year
- Hispanic / Latino
- 6.5%2024 5-year
- Peak Democratic margin
- D+19.9 in 1964MIT Election Lab
- Peak Republican margin
- R+43.6 in 1956MIT Election Lab
- Most similar
- State House District 117, CT · twin score 96.2
presidential history
Party record book
Connecticut 90th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
59.9%
5,652 votes · D+19.9 · modeled estimate
Runner-up · Barack Obama, 2008 · 51.5%
Republican
Dwight D. Eisenhower1956
71.8%
7,292 votes · R+43.6 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 69.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
7,497votes
50.4% of the vote · D+2.3 · modeled estimate
Runner-up · Kamala Harris, 2024 · 6,664 votes
Republican
Ronald Reagan1984
8,472votes
68.5% of the vote · R+37.6 · modeled estimate
Runner-up · Richard Nixon, 1972 · 7,881 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Kamala Harris2024
+3.9pts D vs U.S.
Place D+2.4 · U.S. R+1.5 · modeled estimate
Runner-up · Al Gore, 2000 · +2.9 pts
Republican
Herbert Hoover1932
+33.0pts R vs U.S.
Place R+15.2 · U.S. D+17.8 · modeled estimate
Runner-up · William McKinley, 1896 · +32.6 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2020 | D | 58.2%5,679 | 41.8%4,072 | 9,751 |
| 2018 | D | 60.5%5,150 | 39.5%3,358 | 8,508 |
With a 2024 presidential margin of just D+2.4, this 23,000-resident district sits near the center of Connecticut's partisan spectrum, making it a reliable bellwether for statewide legislative competition.
Across the recorded series it reached a Democratic high of 19.9 points in 1964 and a Republican high of 43.6 points in 1956. The 2024 margin was 2.4 points.
A population of 22,959, a 85% non-Hispanic-white share, and a median household income of $116,172 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 117 and State House District 87.
The state-house 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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Connecticut 90th State House District. Akashic. https://akashic.app/sld-lower/09090/. Accessed May 20, 2026. License: CC BY 4.0.