HarrisDemocratic27.0%4,353TrumpRepublican71.4%11,498OtherAll other candidates1.6%250
R+44.4- Lead
- 7,145
- Total
- 16,101
- vs nation
- R+42.9
modeled Census-place estimatemodeled estimate
Akashicstate house district
Iowa 56th State House District
Office (updates table and map)
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
President results by year
Modeled candidate-vote estimate on current district boundaries
BidenDemocratic28.8%4,905TrumpRepublican69.5%11,826OtherAll other candidates1.6%275
R+40.7- Lead
- 6,921
- Total
- 17,006
- vs nation
- R+45.2
modeled Census-place estimatemodeled estimate
ClintonDemocratic27.6%4,540TrumpRepublican66.1%10,891OtherAll other candidates6.3%1,039
R+38.6- Lead
- 6,351
- Total
- 16,470
- vs nation
- R+40.7
modeled Census-place estimatemodeled estimate
ObamaDemocratic42.3%7,049RomneyRepublican56.1%9,355OtherAll other candidates1.6%267
R+13.8- Lead
- 2,306
- Total
- 16,671
- vs nation
- R+17.7
modeled Census-place estimatemodeled estimate
ObamaDemocratic46.2%7,733McCainRepublican52.2%8,729OtherAll other candidates1.6%272
R+6.0- Lead
- 996
- Total
- 16,734
- vs nation
- R+13.2
modeled Census-place estimatemodeled estimate
KerryDemocratic42.5%7,278BushRepublican56.7%9,721OtherAll other candidates0.8%137
R+14.3- Lead
- 2,443
- Total
- 17,136
- vs nation
- R+11.8
modeled Census-place estimatemodeled estimate
GoreDemocratic42.1%6,750BushRepublican55.0%8,806OtherAll other candidates2.9%459
R+12.8- Lead
- 2,056
- Total
- 16,015
- vs nation
- R+13.4
modeled Census-place estimatemodeled estimate
ClintonDemocratic45.8%7,111DoleRepublican43.5%6,757OtherAll other candidates10.7%1,657
D+2.3- Lead
- 354
- Total
- 15,525
- vs nation
- R+6.2
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+44.4MIT Election Lab
- Population
- 32,0332024 5-year
- Population density
- 23 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,407 sq miTIGER/Line
- Median household income
- $69,3752024 5-year
- White (non-Hispanic)
- 86.3%2024 5-year
- Black
- 0.6%2024 5-year
- Hispanic / Latino
- 10.2%2024 5-year
- Peak Democratic margin
- D+25.0 in 1964MIT Election Lab
- Peak Republican margin
- R+65.0 in 1920MIT Election Lab
- Most similar
- State House District 4, SD · twin score 97.5
presidential history
Party record book
Iowa 56th 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
62.5%
11,702 votes · D+25.0 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 60.4%
Republican
Warren G. Harding1920
81.4%
12,264 votes · R+65.0 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 78.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
11,982votes
59.4% of the vote · D+21.0 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 11,702 votes
Republican
Dwight D. Eisenhower1952
15,429votes
68.5% of the vote · R+37.3 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 12,938 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
+13.1pts D vs U.S.
Place D+5.4 · U.S. R+7.7 · modeled estimate
Runner-up · Walter Mondale, 1984 · +5.0 pts
Republican
Donald Trump2020
+45.2pts R vs U.S.
Place R+40.7 · U.S. D+4.5 · modeled estimate
Runner-up · William McKinley, 1900 · +43.1 pts
current representation
Current officeholders
RMark ThompsonState House · 56
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 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.
With a 2024 presidential margin of R+44.4, this rural Iowa district ranks among the most heavily one-sided in the state, reflecting the demographic and geographic consolidation that has reshaped Iowa's legislative map over the past decade.
Across the recorded series it reached a Democratic high of 25.0 points in 1964 and a Republican high of 65.0 points in 1920. Between 2020 and 2024 the district moved 3.7 points toward the Republican candidate; the 2024 margin was 44.4 points.
A population of 32,033, a 86% non-Hispanic-white share, and a median household income of $69,375 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 4 and State House District 16A.
Political twins — state-house districts
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
State House District 4
South Dakota
97.5twin score
12-yr trend2016–2024 trajectory
State House District 16A
Minnesota
96.7twin score
12-yr trendelasticity2020–2024 trajectory
State House District 21A
Minnesota
96.1twin score
12-yr trend2016–2024 trajectory
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Iowa 56th State House District. Akashic. https://akashic.app/sld-lower/19056/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Iowa at the ballot boxAll elections →
Places within Iowa 56th State House District
counties it covers3
Frequently asked questions
How did Iowa 56th State House District vote in 2024?
In 2024, Iowa 56th State House District voted Republican by 44.4 points (R+44.4), carried by the Republican candidate. Out of 16,101 votes cast, 4,353 went Democratic and 11,498 went Republican.
When did Iowa 56th State House District last vote Democratic?
The most recent presidential election in which Iowa 56th State House District voted Democratic was 1996.
How many people live in Iowa 56th State House District?
Iowa 56th State House District has a population of 32,033 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 56th State House District?
Median household income in Iowa 56th State House District is $69,375 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 56th State House District?
Akashic tracks 38 presidential elections in Iowa 56th State House District from 1876 to 2024. Of those, 8 went Democratic and 29 went Republican.