Religious adherence is published only at the county level (U.S. Religion Census). See Woodbury County.
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.
Iowa 1st State Senate District
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Iowa 1st State Senate DistrictTrumpR+11.4
20082024
How it voted
Share of the 2024 vote
Donald Trump ✓Republican
54.7%
11,908
Kamala HarrisDemocratic
43.4%
9,432
Robert F. Kennedy Jr.We The People
1.9%
413
D+60R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 1 county it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
County-level results (1 county) — table
2024 presidential result by county for Iowa 1st State Senate District — winner and D-vs-R margin.
County
Winner
Margin
Woodbury County, IA
Republican
R+22.9
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5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year
Won
Democratic
Republican
Other
Margin
Total
R
43.4%Harris9,432
54.7%Trump11,908
1.9%Kennedy413
−11.4%
21,753
R
47.6%Biden11,383
50.4%Trump12,058
2.1%Jorgensen496
−2.8%
23,937
R
43.5%Clinton10,196
49.7%Trump11,657
6.7%Johnson1,581
−6.2%
23,434
D
56.8%Obama13,690
43.2%Romney10,423
0.0%
+13.5%
24,113
D
53.7%Obama13,315
44.4%McCain11,002
1.9%Nader470
+9.3%
24,787
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presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2008
+9.3%
2012
+13.5%
2016
−6.2%
2020
−2.8%
2024
−11.4%
DemocraticRepublican
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current representation
Current officeholders
DCatelin DreyState Senate · 1
State legislative officeholder from OpenStates nightly current-legislator data.
Anchored in the rural Loess Hills and Missouri River corridor, this sparsely populated district delivered one of Iowa's widest 2024 presidential margins, reflecting deep-rooted agricultural communities with little urban counterweight.
Across the recorded series it reached a Democratic high of 13.5 points in 2012 and a Republican high of 11.4 points in 2024. Between 2020 and 2024 the district moved 8.6 points toward the Republican candidate; the 2024 margin was 11.4 points.
A population of 63,978, a 64% non-Hispanic-white share, and a median household income of $66,408 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 17 and State Senate District 34.
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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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Iowa 1st State Senate District. Akashic. https://akashic.app/sld-upper/19001/. Accessed May 20, 2026. License: CC BY 4.0.
How did Iowa 1st State Senate District vote in 2024?
In 2024, Iowa 1st State Senate District voted Republican by 11.4 points (R+11.4), carried by the Republican candidate. Out of 21,753 votes cast, 9,432 went Democratic and 11,908 went Republican.
When did Iowa 1st State Senate District last vote Democratic?
The most recent presidential election in which Iowa 1st State Senate District voted Democratic was 2012.
How many people live in Iowa 1st State Senate District?
Iowa 1st State Senate District has a population of 63,978 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 1st State Senate District?
Median household income in Iowa 1st State Senate District is $66,408 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 1st State Senate District?
Akashic tracks 5 presidential elections in Iowa 1st State Senate District from 2008 to 2024. Of those, 2 went Democratic and 3 went Republican.
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