HarrisDemocratic29.3%9,054TrumpRepublican69.2%21,385OtherAll other candidates1.5%448
R+39.9- Lead
- 12,331
- Total
- 30,887
- vs nation
- R+38.5
modeled Census-place estimatemodeled estimate
Akashicstate senate district
Iowa 4th State Senate 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
BidenDemocratic32.1%10,405TrumpRepublican66.3%21,514OtherAll other candidates1.6%519
R+34.2- Lead
- 11,109
- Total
- 32,438
- vs nation
- R+38.7
modeled Census-place estimatemodeled estimate
ClintonDemocratic31.1%9,936TrumpRepublican62.3%19,929OtherAll other candidates6.6%2,121
R+31.2- Lead
- 9,993
- Total
- 31,986
- vs nation
- R+33.3
modeled Census-place estimatemodeled estimate
ObamaDemocratic46.9%15,420RomneyRepublican51.3%16,850OtherAll other candidates1.8%575
R+4.4- Lead
- 1,430
- Total
- 32,845
- vs nation
- R+8.2
modeled Census-place estimatemodeled estimate
ObamaDemocratic49.7%16,314McCainRepublican48.5%15,921OtherAll other candidates1.8%581
D+1.2- Lead
- 393
- Total
- 32,816
- vs nation
- R+6.1
modeled Census-place estimatemodeled estimate
KerryDemocratic46.8%15,841BushRepublican52.5%17,783OtherAll other candidates0.7%236
R+5.7- Lead
- 1,942
- Total
- 33,860
- vs nation
- R+3.3
modeled Census-place estimatemodeled estimate
GoreDemocratic46.2%14,446BushRepublican51.1%15,966OtherAll other candidates2.7%851
R+4.9- Lead
- 1,520
- Total
- 31,263
- vs nation
- R+5.4
modeled Census-place estimatemodeled estimate
ClintonDemocratic48.6%14,724DoleRepublican40.5%12,268OtherAll other candidates11.0%3,327
D+8.1- Lead
- 2,456
- Total
- 30,319
- vs nation
- R+0.4
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+39.9MIT Election Lab
- Population
- 63,8182024 5-year
- Population density
- 26 / sq mi2024 5-year · TIGER/Line
- Land area
- 2,438 sq miTIGER/Line
- Median household income
- $68,1302024 5-year
- White (non-Hispanic)
- 88.0%2024 5-year
- Black
- 3.2%2024 5-year
- Hispanic / Latino
- 4.7%2024 5-year
- Peak Democratic margin
- D+29.5 in 1964MIT Election Lab
- Peak Republican margin
- R+48.3 in 1920MIT Election Lab
- Most similar
- State Senate District 29, IA · twin score 95.0
presidential history
Party record book
Iowa 4th State Senate 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
64.6%
25,758 votes · D+29.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 63.3%
Republican
Warren G. Harding1920
70.8%
22,619 votes · R+48.3 · modeled estimate
Runner-up · Donald Trump, 2024 · 69.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
25,758votes
64.6% of the vote · D+29.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 23,258 votes
Republican
Dwight D. Eisenhower1952
28,616votes
62.9% of the vote · R+27.6 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 23,986 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
+22.8pts D vs U.S.
Place D+15.0 · U.S. R+7.7 · modeled estimate
Runner-up · Walter Mondale, 1984 · +14.0 pts
Republican
Donald Trump2020
+38.7pts R vs U.S.
Place R+34.2 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2024 · +38.5 pts
current representation
Current officeholders
RTim KraayenbrinkState Senate · 4
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.
This rural northwest Iowa district recorded a 39.9-point Republican presidential margin in 2024, making it among the most politically uniform constituencies in the state and a reliable benchmark for measuring statewide partisan shifts.
Across the recorded series it reached a Democratic high of 29.5 points in 1964 and a Republican high of 48.3 points in 1920. Between 2020 and 2024 the district moved 5.7 points toward the Republican candidate; the 2024 margin was 39.9 points.
A population of 63,818, a 88% non-Hispanic-white share, and a median household income of $68,130 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 29 and State Senate District 27.
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
State Senate District 29
Iowa
95.0twin score
12-yr trendelasticity2020–2024 trajectory≠ German ancestry
State Senate District 27
Iowa
94.5twin score
12-yr trendelasticity2020–2024 trajectory
State Senate District 34
Iowa
94.4twin score
12-yr trendelasticity2020–2024 trajectory≠ Scottish ancestry
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 4th State Senate District. Akashic. https://akashic.app/sld-upper/19004/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Iowa at the ballot boxAll elections →
Places within Iowa 4th State Senate District
counties it covers4
Frequently asked questions
How did Iowa 4th State Senate District vote in 2024?
In 2024, Iowa 4th State Senate District voted Republican by 39.9 points (R+39.9), carried by the Republican candidate. Out of 30,887 votes cast, 9,054 went Democratic and 21,385 went Republican.
When did Iowa 4th State Senate District last vote Democratic?
The most recent presidential election in which Iowa 4th State Senate District voted Democratic was 2008.
How many people live in Iowa 4th State Senate District?
Iowa 4th State Senate District has a population of 63,818 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 4th State Senate District?
Median household income in Iowa 4th State Senate District is $68,130 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 4th State Senate District?
Akashic tracks 38 presidential elections in Iowa 4th State Senate District from 1876 to 2024. Of those, 11 went Democratic and 26 went Republican.