Kansas 66th 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
Kamala Harris2024
60.9%
3,589 votes · D+24.4 · modeled estimate
Runner-up · Joe Biden, 2020 · 60.7%
Republican
Rutherford B. Hayes1876
75.8%
250 votes · R+54.8 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 70.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
3,763votes
60.7% of the vote · D+25.4 · modeled estimate
Runner-up · Barack Obama, 2008 · 3,604 votes
Republican
George W. Bush2004
2,623votes
48.5% of the vote · D+1.1 · modeled estimate
Runner-up · John McCain, 2008 · 2,492 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
+25.8pts D vs U.S.
Place D+24.4 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +20.9 pts
Republican
Benjamin Harrison1892
+45.3pts R vs U.S.
Place R+43.6 · U.S. D+1.7 · a third-party candidate carried the Place · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · +30.7 pts
current representation
Current officeholders
DSydney CarlinState House · 66
State legislative officeholder from OpenStates nightly current-legislator data.
District 66 sits within the Kansas City suburban corridor of Johnson County, where dense residential neighborhoods and a highly educated workforce have produced some of the most lopsided Democratic margins in the state legislature.
Across the recorded series it reached a Democratic high of 28.9 points in 1912 and a Republican high of 54.8 points in 1876. Between 2020 and 2024 the district moved 1.0 points toward the Republican candidate; the 2024 margin was 24.4 points.
A population of 24,145, a 74% non-Hispanic-white share, and a median household income of $40,617 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 61 and State House District 75.
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.
Kansas 66th State House District. Akashic. https://akashic.app/sld-lower/20066/. Accessed May 20, 2026. License: CC BY 4.0.
How did Kansas 66th State House District vote in 2024?
In 2024, Kansas 66th State House District voted Democratic by 24.4 points (D+24.4), carried by the Democratic candidate. Out of 5,892 votes cast, 3,589 went Democratic and 2,154 went Republican.
When did Kansas 66th State House District last vote Republican?
The most recent presidential election in which Kansas 66th State House District voted Republican was 2000.
How many people live in Kansas 66th State House District?
Kansas 66th State House District has a population of 24,145 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Kansas 66th State House District?
Median household income in Kansas 66th State House District is $40,617 — below the national median of $80,734. The Kansas state median is $74,275.
What is the political history of Kansas 66th State House District?
Akashic tracks 38 presidential elections in Kansas 66th State House District from 1876 to 2024. Of those, 16 went Democratic and 20 went Republican.