HarrisDemocratic30.1%9,841TrumpRepublican68.3%22,359OtherAll other candidates1.6%525
R+38.3- Lead
- 12,518
- Total
- 32,725
- vs nation
- R+36.8
modeled Census-place estimatemodeled estimate
Akashicstate senate district
Iowa 28th State Senate District
Contests in this Place (45 available)
President38 · 1876–2024 · 3 mapped
▦ precinct · ▥ counties · ▢ no spatial detail
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
BidenDemocratic32.3%11,092TrumpRepublican66.0%22,657OtherAll other candidates1.7%593
R+33.7- Lead
- 11,565
- Total
- 34,342
- vs nation
- R+38.1
modeled Census-place estimatemodeled estimate
ClintonDemocratic30.7%10,226TrumpRepublican62.1%20,695OtherAll other candidates7.2%2,390
R+31.4- Lead
- 10,469
- Total
- 33,311
- vs nation
- R+33.5
modeled Census-place estimatemodeled estimate
ObamaDemocratic43.7%14,660RomneyRepublican54.6%18,317OtherAll other candidates1.7%578
R+10.9- Lead
- 3,657
- Total
- 33,555
- vs nation
- R+14.8
modeled Census-place estimatemodeled estimate
ObamaDemocratic47.4%15,953McCainRepublican51.1%17,206OtherAll other candidates1.6%527
R+3.7- Lead
- 1,253
- Total
- 33,686
- vs nation
- R+11.0
modeled Census-place estimatemodeled estimate
KerryDemocratic43.0%14,937BushRepublican56.2%19,506OtherAll other candidates0.8%279
R+13.2- Lead
- 4,569
- Total
- 34,722
- vs nation
- R+10.7
modeled Census-place estimatemodeled estimate
GoreDemocratic42.4%13,412BushRepublican54.7%17,289OtherAll other candidates2.9%914
R+12.3- Lead
- 3,877
- Total
- 31,615
- vs nation
- R+12.8
modeled Census-place estimatemodeled estimate
ClintonDemocratic46.0%13,928DoleRepublican44.0%13,310OtherAll other candidates10.0%3,032
D+2.0- Lead
- 618
- Total
- 30,270
- vs nation
- R+6.5
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+38.3MIT Election Lab
- Population
- 64,0602024 5-year
- Population density
- 23 / sq mi2024 5-year · TIGER/Line
- Land area
- 2,817 sq miTIGER/Line
- Median household income
- $70,6002024 5-year
- White (non-Hispanic)
- 85.4%2024 5-year
- Black
- 0.6%2024 5-year
- Hispanic / Latino
- 10.5%2024 5-year
- Peak Democratic margin
- D+24.6 in 1932MIT Election Lab
- Peak Republican margin
- R+67.6 in 1920MIT Election Lab
- Most similar
- State Senate District 4, IA · twin score 93.9
presidential history
Party record book
Iowa 28th 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
62.3%
20,799 votes · D+24.6 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 61.2%
Republican
Warren G. Harding1920
82.9%
24,024 votes · R+67.6 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 78.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
22,270votes
59.4% of the vote · D+20.9 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 21,589 votes
Republican
Dwight D. Eisenhower1952
29,876votes
70.4% of the vote · R+41.3 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 24,959 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
+13.4pts D vs U.S.
Place D+5.6 · U.S. R+7.7 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · +6.8 pts
Republican
Charles E. Hughes1916
+45.0pts R vs U.S.
Place R+41.8 · U.S. D+3.1 · modeled estimate
Runner-up · William McKinley, 1900 · +43.8 pts
current representation
Current officeholders
RDennis GuthState Senate · 28
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 28th State Senate District sits in the Corn Belt. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 24.6 points in 1932 and a Republican high of 67.6 points in 1920. Between 2020 and 2024 the district moved 4.6 points toward the Republican candidate; the 2024 margin was 38.3 points.
A population of 64,060, a 85% non-Hispanic-white share, and a median household income of $70,600 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 4 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 4
Iowa
93.9twin score
12-yr trendelasticity2020–2024 trajectory≠ Scottish ancestry
State Senate District 4
South Dakota
93.7twin score
12-yr trendelasticity2020–2024 trajectory≠ Norwegian ancestry
State Senate District 27
Iowa
93.6twin score
12-yr trendelasticity2020–2024 trajectory≠ Norwegian 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.
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 28th State Senate District. Akashic. https://akashic.app/sld-upper/19028/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Places within Iowa 28th State Senate District
Frequently asked questions
How did Iowa 28th State Senate District vote in 2024?
In 2024, Iowa 28th State Senate District voted Republican by 38.3 points (R+38.3), carried by the Republican candidate. Out of 32,725 votes cast, 9,841 went Democratic and 22,359 went Republican.
When did Iowa 28th State Senate District last vote Democratic?
The most recent presidential election in which Iowa 28th State Senate District voted Democratic was 1996.
How many people live in Iowa 28th State Senate District?
Iowa 28th State Senate District has a population of 64,060 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 28th State Senate District?
Median household income in Iowa 28th State Senate District is $70,600 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 28th State Senate District?
Akashic tracks 38 presidential elections in Iowa 28th State Senate District from 1876 to 2024. Of those, 8 went Democratic and 29 went Republican.