HarrisDemocratic34.4%11,585TrumpRepublican63.9%21,514OtherAll other candidates1.7%573
R+29.5- Lead
- 9,929
- Total
- 33,672
- vs nation
- R+28.0
modeled Census-place estimatemodeled estimate
Akashicstate senate district
Iowa 27th 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
BidenDemocratic37.2%12,934TrumpRepublican61.1%21,245OtherAll other candidates1.7%607
R+23.9- Lead
- 8,311
- Total
- 34,786
- vs nation
- R+28.3
modeled Census-place estimatemodeled estimate
ClintonDemocratic35.8%12,004TrumpRepublican57.0%19,119OtherAll other candidates7.2%2,416
R+21.2- Lead
- 7,115
- Total
- 33,539
- vs nation
- R+23.3
modeled Census-place estimatemodeled estimate
ObamaDemocratic48.4%16,471RomneyRepublican50.0%17,041OtherAll other candidates1.6%538
R+1.7- Lead
- 570
- Total
- 34,050
- vs nation
- R+5.5
modeled Census-place estimatemodeled estimate
ObamaDemocratic50.9%17,148McCainRepublican47.7%16,091OtherAll other candidates1.4%477
D+3.1- Lead
- 1,057
- Total
- 33,716
- vs nation
- R+4.1
modeled Census-place estimatemodeled estimate
KerryDemocratic45.6%15,523BushRepublican53.8%18,309OtherAll other candidates0.6%212
R+8.2- Lead
- 2,786
- Total
- 34,044
- vs nation
- R+5.7
modeled Census-place estimatemodeled estimate
GoreDemocratic44.6%13,791BushRepublican52.8%16,333OtherAll other candidates2.7%826
R+8.2- Lead
- 2,542
- Total
- 30,950
- vs nation
- R+8.7
modeled Census-place estimatemodeled estimate
ClintonDemocratic48.7%14,212DoleRepublican42.4%12,367OtherAll other candidates9.0%2,614
D+6.3- Lead
- 1,845
- Total
- 29,193
- vs nation
- R+2.2
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+29.5MIT Election Lab
- Population
- 63,6432024 5-year
- Population density
- 27 / sq mi2024 5-year · TIGER/Line
- Land area
- 2,342 sq miTIGER/Line
- Median household income
- $72,2692024 5-year
- White (non-Hispanic)
- 88.1%2024 5-year
- Black
- 1.0%2024 5-year
- Hispanic / Latino
- 5.1%2024 5-year
- Peak Democratic margin
- D+19.2 in 1932MIT Election Lab
- Peak Republican margin
- R+56.5 in 1920MIT Election Lab
- Most similar
- State Senate District 29, IA · twin score 94.6
presidential history
Party record book
Iowa 27th 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
Franklin D. Roosevelt1932
59.6%
18,797 votes · D+19.2 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 59.5%
Republican
Warren G. Harding1920
77.3%
22,127 votes · R+56.5 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 68.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
19,541votes
59.5% of the vote · D+19.1 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 19,540 votes
Republican
Dwight D. Eisenhower1952
25,512votes
68.7% of the vote · R+37.7 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 22,127 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
+14.7pts D vs U.S.
Place D+7.0 · U.S. R+7.7 · modeled estimate
Runner-up · Walter Mondale, 1984 · +4.1 pts
Republican
Warren G. Harding1920
+30.3pts R vs U.S.
Place R+56.5 · U.S. R+26.2 · modeled estimate
Runner-up · Donald Trump, 2020 · +28.3 pts
current representation
Current officeholders
RAnnette SweeneyState Senate · 27
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.
Iowa 27th State Senate District sits in the Corn Belt. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 19.2 points in 1932 and a Republican high of 56.5 points in 1920. Between 2020 and 2024 the district moved 5.6 points toward the Republican candidate; the 2024 margin was 29.5 points.
A population of 63,643, a 88% non-Hispanic-white share, and a median household income of $72,269 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 4.
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
94.6twin score
12-yr trend2020–2024 trajectoryelasticity≠ % unaffiliated
State Senate District 4
Iowa
94.5twin score
12-yr trendelasticity2020–2024 trajectory
State Senate District 44
Iowa
94.4twin score
12-yr trendelasticity2020–2024 trajectory≠ German 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 27th State Senate District. Akashic. https://akashic.app/sld-upper/19027/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Iowa at the ballot boxAll elections →
Places within Iowa 27th State Senate District
counties it covers5
Frequently asked questions
How did Iowa 27th State Senate District vote in 2024?
In 2024, Iowa 27th State Senate District voted Republican by 29.5 points (R+29.5), carried by the Republican candidate. Out of 33,672 votes cast, 11,585 went Democratic and 21,514 went Republican.
When did Iowa 27th State Senate District last vote Democratic?
The most recent presidential election in which Iowa 27th State Senate District voted Democratic was 2008.
How many people live in Iowa 27th State Senate District?
Iowa 27th State Senate District has a population of 63,643 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 27th State Senate District?
Median household income in Iowa 27th State Senate District is $72,269 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 27th State Senate District?
Akashic tracks 38 presidential elections in Iowa 27th State Senate District from 1876 to 2024. Of those, 7 went Democratic and 30 went Republican.