state house districtIowa 15th State House District
presidential margin
2004–2024 · Democratic minus Republican
2004R+28.3
2008R+11.3
2012R+19.5
2016R+35.3
2020R+32.7
2024R+35.1
net swing · 2004→2024R+6.7R+28.3 → R+35.1
vs. U.S. · 2024R+33.6R+35.1 vs R+1.5
presidential returns
2024 turnout 80.9% of 23,829 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
6,095
12,855
332
19,282
23,829
80.9%
2020
6,411
12,802
313
19,526
23,472†
83.2%
2016
5,197
11,403
977
17,577
23,522†
74.7%
2012
6,601
9,870
299
16,770
23,586†
71.1%
2008
7,408
9,355
400
17,163
23,387†
73.4%
2004
6,095
10,983
182
17,260
23,189†
74.4%
† 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 HD 15IowaUnited States
German32.6%30.5%12.5%
Irish13.9%12.8%9.4%
English13.2%10.2%9.5%
American6.8%4.6%5.3%
Danish4.3%——
Italian2.8%1.6%4.8%
Norwegian2.3%4.1%—
Swedish1.5%1.9%—
Mexican1.8%5.0%11.3%
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 HD 15
Iowa
United States
Median age
43
38.8
39.1
Age 18–24
8.0%
10.0%
9.2%
Age 65 and older
19.0%
18.1%
17.2%
Household economy
Measure
IA HD 15
Iowa
United States
Median household income
$93,096
$75,059
$84,427
Poverty rate
4.8%
11.1%
12.5%
Bachelor's degree or higher (25+)
23.2%
31.8%
35.6%
Languages at home
Measure
IA HD 15
Iowa
United States
Speaks a non-English language at home
5.1%
9.2%
22.3%
Spanish
4.1%
4.7%
13.6%
Religious landscape
Measure
IA HD 15
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 15th State House District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−28.3%
2008
−11.3%
2012
−19.5%
2016
−35.3%
2020
−32.7%
2024
−35.1%
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
R
31.6%Harris6,095
66.7%Trump12,855
1.7%
R+35.1
R+2.3
R+33.6
19,282
R
32.8%Biden6,411
65.6%Trump12,802
1.6%
R+32.7
D+2.6
R+37.2
19,526
R
29.6%Clinton5,197
64.9%Trump11,403
5.6%
R+35.3
R+15.8
R+37.4
17,577
R
39.4%Obama6,601
58.9%Romney9,870
1.8%
R+19.5
R+8.1
R+23.3
16,770
R
43.2%Obama7,408
54.5%McCain9,355
2.3%
R+11.3
D+17.0
R+18.6
17,163
R
35.3%Kerry6,095
63.6%Bush10,983
1.1%
R+28.3
—
R+25.9
17,260
current representation
Current officeholders
RMatt WindschitlState House · 15
State legislative officeholder from OpenStates nightly current-legislator data.
In 2024 it voted Republican by R+35.1, against R+11.3 in 2008. About 41,800 residents lived here, with White alone at 89.9% in the 2024 ACS 5-year.
Across the recorded series it reached a Republican high of 35.3 points in 2016. Between 2020 and 2024 the district moved 2.3 points toward the Republican candidate; the 2024 margin was 35.1 points.
A population of 31,740, a 94% non-Hispanic-white share, and a median household income of $93,096 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 16 and State House District 42.
Akashic
Political twins — state-house districts
The state-house 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 15th State House District. Akashic. https://akashic.app/sld-lower/19015/. Accessed May 20, 2026. License: CC BY 4.0.
How did Iowa 15th State House District vote in 2024?
In 2024, Iowa 15th State House District voted Republican by 35.1 points (R+35.1), carried by the Republican candidate. Out of 19,282 votes cast, 6,095 went Democratic and 12,855 went Republican.
How many people live in Iowa 15th State House District?
Iowa 15th State House District has a population of 31,740 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 15th State House District?
Median household income in Iowa 15th State House District is $93,096 — above the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 15th State House District?
Akashic tracks 6 presidential elections in Iowa 15th State House District from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
