state senate districtIowa 25th State Senate District
presidential margin
2004–2024 · Democratic minus Republican
2004D+15.8
2008D+26.4
2012D+23.8
2016D+25.8
2020D+35.9
2024D+27.3
net swing · 2004→2024D+11.5D+15.8 → D+27.3
vs. U.S. · 2024D+28.8D+27.3 vs R+1.5
presidential returns
2024 turnout 54.8% of 52,377 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
17,935
10,096
665
28,696
52,377
54.8%
2020
20,101
9,246
921
30,268
49,393†
61.3%
2016
18,356
10,084
3,580
32,020
48,022†
66.7%
2012
17,388
10,553
786
28,727
45,708†
62.8%
2008
17,981
10,325
687
28,993
43,548†
66.6%
2004
15,743
11,376
434
27,553
41,388†
66.6%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupIA SD 25IowaUnited States
German27.3%30.5%12.5%
Irish10.2%12.8%9.4%
English9.8%10.2%9.5%
Norwegian7.3%4.1%—
American2.8%4.6%5.3%
Swedish2.4%1.9%—
Italian2.2%1.6%4.8%
Dutch2.2%2.7%—
Chinese2.3%0.3%1.3%
Asian Indian1.7%0.5%1.4%
Korean1.4%0.2%0.4%
Filipino0.4%0.2%0.9%
Vietnamese0.4%0.3%0.6%
Bangladeshi0.4%——
Mexican3.2%5.0%11.3%
Puerto Rican0.5%0.3%1.8%
Guatemalan0.3%0.4%0.5%
Cuban0.2%—0.7%
Venezuelan0.2%——
Spanish0.2%——
African American†2.6%2.6%9.9%
African0.6%0.3%0.5%
Sudanese0.5%0.2%—
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
IA SD 25
Iowa
United States
Median age
22.9
38.8
39.1
Age 18–24
30.9%
10.0%
9.2%
Age 65 and older
13.1%
18.1%
17.2%
Household economy
Measure
IA SD 25
Iowa
United States
Median household income
$60,995
$75,059
$84,427
Poverty rate
25.8%
11.1%
12.5%
Bachelor's degree or higher (25+)
54.8%
31.8%
35.6%
Languages at home
Measure
IA SD 25
Iowa
United States
Speaks a non-English language at home
11.1%
9.2%
22.3%
Spanish
2.5%
4.7%
13.6%
Other Indo-European
2.6%
0.6%
2.0%
Chinese (incl. Mandarin & Cantonese)
1.6%
0.3%
1.1%
Other Asian & Pacific Island
1.0%
1.0%
1.1%
Religious landscape
Measure
IA SD 25
Iowa
United States
Catholic
—
14.7%
18.6%
Evangelical Protestant
—
10.9%
16.5%
Unclaimed / not counted
—
55.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Iowa 25th State Senate District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+15.8%
2008
+26.4%
2012
+23.8%
2016
+25.8%
2020
+35.9%
2024
+27.3%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
62.5%Harris17,935
35.2%Trump10,096
2.3%
D+27.3
R+8.5
D+28.8
28,696
D
66.4%Biden20,101
30.5%Trump9,246
3.0%
D+35.9
D+10.0
D+31.4
30,268
D
57.3%Clinton18,356
31.5%Trump10,084
11.2%
D+25.8
D+2.0
D+23.7
32,020
D
60.5%Obama17,388
36.7%Romney10,553
2.7%
D+23.8
R+2.6
D+19.9
28,727
D
62.0%Obama17,981
35.6%McCain10,325
2.4%
D+26.4
D+10.6
D+19.1
28,993
D
57.1%Kerry15,743
41.3%Bush11,376
1.6%
D+15.8
—
D+18.3
27,553
current representation
Current officeholders
DHerman QuirmbachState Senate · 25
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of R+46.7, this rural Iowa district ranks among the most one-sided in the state, reflecting the broad realignment of small-town and agricultural communities that has reshaped Iowa's electoral map over the past decade.
Across the recorded series it reached a Democratic high of 35.9 points in 2020. Between 2020 and 2024 the district moved 8.5 points toward the Republican candidate; the 2024 margin was 27.3 points.
A population of 63,738, a 76% non-Hispanic-white share, and a median household income of $60,995 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 45 and State Senate District 46.
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Iowa 25th State Senate District. Akashic. https://akashic.app/sld-upper/19025/. Accessed May 20, 2026. License: CC BY 4.0.
How did Iowa 25th State Senate District vote in 2024?
In 2024, Iowa 25th State Senate District voted Democratic by 27.3 points (D+27.3), carried by the Democratic candidate. Out of 28,696 votes cast, 17,935 went Democratic and 10,096 went Republican.
How many people live in Iowa 25th State Senate District?
Iowa 25th State Senate District has a population of 63,738 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 25th State Senate District?
Median household income in Iowa 25th State Senate District is $60,995 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 25th State Senate District?
Akashic tracks 6 presidential elections in Iowa 25th State Senate District from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
