Connecticut 18th 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
85.6%
9,038 votes · D+71.4 · modeled estimate
Runner-up · Barack Obama, 2008 · 80.1%
Republican
William McKinley1896
49.7%
411 votes · R+4.1 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 44.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
10,134votes
78.5% of the vote · D+58.3 · modeled estimate
Runner-up · Barack Obama, 2008 · 10,107 votes
Republican
Ronald Reagan1984
3,502votes
35.4% of the vote · D+28.8 · modeled estimate
Runner-up · Richard Nixon, 1972 · 3,270 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
George McGovern1972
+56.4pts D vs U.S.
Place D+33.3 · U.S. R+23.2 · modeled estimate
Runner-up · Al Gore, 2000 · +55.4 pts
Republican
William McKinley1896
−2.0pts R vs U.S.
Place R+4.1 · U.S. R+6.1 · modeled estimate
Runner-up · William H. Taft, 1912 · −8.2 pts
current representation
Current officeholders
DJill GilchrestState House · 18
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 2 House
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.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2020
D
63.4%7,146
36.6%4,121
11,267
2018
D
63.6%5,568
36.4%3,190
8,758
With a 2024 presidential margin of D+50.1, this district ranks among the most lopsided in the state, suggesting a dense urban or college-town core where one coalition commands overwhelming structural advantages.
Across the recorded series it reached a Democratic high of 71.4 points in 1964 and a Republican high of 4.1 points in 1896. Between 2020 and 2024 the district moved 8.2 points toward the Republican candidate; the 2024 margin was 50.0 points.
A population of 24,371, a 69% non-Hispanic-white share, and a median household income of $115,369 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 13 and State House District 91.
Akashic
Political twins — state-house districts
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.
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 → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Connecticut 18th State House District. Akashic. https://akashic.app/sld-lower/09018/. Accessed May 20, 2026. License: CC BY 4.0.
How did Connecticut 18th State House District vote in 2024?
In 2024, Connecticut 18th State House District voted Democratic by 50.0 points (D+50.0), carried by the Democratic candidate. Out of 13,490 votes cast, 9,984 went Democratic and 3,233 went Republican.
When did Connecticut 18th State House District last vote Republican?
The most recent presidential election in which Connecticut 18th State House District voted Republican was 1896.
How many people live in Connecticut 18th State House District?
Connecticut 18th State House District has a population of 24,371 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Connecticut 18th State House District?
Median household income in Connecticut 18th State House District is $115,369 — above the national median of $80,734. The Connecticut state median is $95,781.
What is the political history of Connecticut 18th State House District?
Akashic tracks 38 presidential elections in Connecticut 18th State House District from 1876 to 2024. Of those, 37 went Democratic and 1 went Republican.