Iowa 33rd 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
76.5%
4,393 votes · D+53.1 · modeled estimate
Runner-up · Michael Dukakis, 1988 · 70.6%
Republican
Theodore Roosevelt1904
69.2%
516 votes · R+48.9 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 56.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
7,936votes
65.4% of the vote · D+33.3 · modeled estimate
Runner-up · Barack Obama, 2012 · 7,642 votes
Republican
Donald Trump2024
4,035votes
36.7% of the vote · D+24.7 · modeled estimate
Runner-up · Donald Trump, 2020 · 3,895 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
Michael Dukakis1988
+49.1pts D vs U.S.
Place D+41.3 · U.S. R+7.7 · modeled estimate
Runner-up · Walter Mondale, 1984 · +44.9 pts
Republican
Theodore Roosevelt1904
+29.3pts R vs U.S.
Place R+48.9 · U.S. R+19.7 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · +11.4 pts
current representation
Current officeholders
DRuth Ann GainesState House · 33
State legislative officeholder from OpenStates nightly current-legislator data.
Iowa 33rd State House District sits in the Corn Belt. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 53.1 points in 1964 and a Republican high of 48.9 points in 1904. Between 2020 and 2024 the district moved 8.7 points toward the Republican candidate; the 2024 margin was 24.7 points.
A population of 32,104, a 51% non-Hispanic-white share, and a median household income of $61,884 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 29 and State House District 30.
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.
Iowa 33rd State House District. Akashic. https://akashic.app/sld-lower/19033/. Accessed May 20, 2026. License: CC BY 4.0.
How did Iowa 33rd State House District vote in 2024?
In 2024, Iowa 33rd State House District voted Democratic by 24.7 points (D+24.7), carried by the Democratic candidate. Out of 11,008 votes cast, 6,749 went Democratic and 4,035 went Republican.
When did Iowa 33rd State House District last vote Republican?
The most recent presidential election in which Iowa 33rd State House District voted Republican was 1928.
How many people live in Iowa 33rd State House District?
Iowa 33rd State House District has a population of 32,104 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 33rd State House District?
Median household income in Iowa 33rd State House District is $61,884 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 33rd State House District?
Akashic tracks 38 presidential elections in Iowa 33rd State House District from 1876 to 2024. Of those, 29 went Democratic and 6 went Republican.