Iowa 3rd 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
62.2%
18,883 votes · D+24.4 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 61.3%
Republican
Warren G. Harding1920
77.6%
19,595 votes · R+57.2 · modeled estimate
Runner-up · Rutherford B. Hayes, 1876 · 75.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
20,881votes
61.3% of the vote · D+24.6 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 19,316 votes
Republican
Dwight D. Eisenhower1952
27,579votes
71.7% of the vote · R+44.0 · modeled estimate
Runner-up · Richard Nixon, 1960 · 23,385 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
Franklin D. Roosevelt1932
+6.6pts D vs U.S.
Place D+24.4 · U.S. D+17.8 · modeled estimate
Runner-up · Michael Dukakis, 1988 · +5.7 pts
Republican
Donald Trump2024
+45.8pts R vs U.S.
Place R+47.3 · U.S. R+1.5 · modeled estimate
Runner-up · Donald Trump, 2020 · +45.7 pts
current representation
Current officeholders
RLynn EvansState Senate · 3
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.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
R
25.0%7,076
75.0%21,243
28,319
2020
R
30.5%9,214
69.5%20,999
30,213
2018
R
42.7%10,206
57.3%13,708
23,914
Iowa 3rd 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 1936 and a Republican high of 57.9 points in 1876. Between 2020 and 2024 the district moved 6.1 points toward the Republican candidate; the 2024 margin was 47.3 points.
A population of 63,782, a 78% non-Hispanic-white share, and a median household income of $68,836 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 6 and State Senate District 7.
Akashic
Political twins — state-senate districts
The state-senate 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 3rd State Senate District. Akashic. https://akashic.app/sld-upper/19003/. Accessed May 20, 2026. License: CC BY 4.0.
How did Iowa 3rd State Senate District vote in 2024?
In 2024, Iowa 3rd State Senate District voted Republican by 47.3 points (R+47.3), carried by the Republican candidate. Out of 29,859 votes cast, 7,645 went Democratic and 21,773 went Republican.
When did Iowa 3rd State Senate District last vote Democratic?
The most recent presidential election in which Iowa 3rd State Senate District voted Democratic was 1964.
How many people live in Iowa 3rd State Senate District?
Iowa 3rd State Senate District has a population of 63,782 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 3rd State Senate District?
Median household income in Iowa 3rd State Senate District is $68,836 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 3rd State Senate District?
Akashic tracks 38 presidential elections in Iowa 3rd State Senate District from 1876 to 2024. Of those, 5 went Democratic and 32 went Republican.