Iowa 100th State House District, Iowa: Tossup district. In 2024, voted R+28%. Republican peak: R+34 in 1920.
Key facts
- 2024 presidential margin
- R+28MIT Election Lab
- Political archetype
- TossupAkashic typology
- Population
- 27,1362024 5-year
- Median household income
- $62,3822024 5-year
- White (non-Hispanic)
- 91.1%2024 5-year
- Black
- 2.5%2024 5-year
- Hispanic / Latino
- 3.5%2024 5-year
- Peak Democratic margin
- D+32 in 1964MIT Election Lab
- Peak Republican margin
- R+34 in 1920MIT Election Lab
Constituent county margins for State House District 100, IAOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 4,669 | 8,375 | 13,363 | ||
| R | 5,396 | 8,063 | 13,805 | ||
| R | 5,127 | 7,262 | 13,486 | ||
| D | 8,839 | 6,423 | 15,601 | ||
| D | 8,102 | 5,826 | 14,210 | ||
| D | 8,375 | 6,164 | 14,733 | ||
| D | 7,946 | 5,230 | 13,672 | ||
| D | 7,285 | 4,069 | 12,921 | ||
| D | 7,727 | 3,941 | 14,150 | ||
| D | 9,001 | 5,138 | 14,264 | ||
| D | 7,352 | 7,224 | 14,692 | ||
| R | 6,768 | 7,254 | 15,068 | ||
| D | 7,439 | 6,761 | 14,408 | ||
| R | 6,196 | 8,042 | 14,535 | ||
| R | 6,663 | 7,328 | 14,879 | ||
| D | 10,101 | 5,215 | 15,330 | ||
| R | 8,197 | 8,881 | 17,078 | ||
| R | 6,786 | 9,546 | 16,359 | ||
| R | 7,115 | 10,138 | 17,299 | ||
| D | 7,591 | 6,436 | 14,200 | ||
| R | 6,808 | 7,760 | 14,632 | ||
| R | 7,521 | 8,758 | 16,307 | ||
| D | 7,945 | 7,388 | 15,936 | ||
| D | 8,765 | 5,844 | 14,769 | ||
| R | 6,423 | 9,607 | 16,050 | ||
| R | 4,045 | 8,249 | 15,161 | ||
| R | 4,271 | 8,879 | 13,466 | ||
| R | 3,294 | 3,626 | 7,084 | ||
| D | 3,210 | 1,663 | 7,029 | ||
| D | 3,882 | 3,516 | 7,544 | ||
| R | 3,175 | 3,805 | 7,218 | ||
| D | 4,275 | 3,701 | 8,067 | ||
| D | 4,251 | 3,999 | 8,384 | ||
| D | 4,089 | 3,276 | 7,538 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
33.0%
Irish
16.2%
English
11.4%
American
4.6%
Italian
1.4%
French
1.4%
Scottish
1.4%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 43.6 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$62,382
State House District 100 ranks near the middle of US counties.
State House District 100$62,382
Iowa$75,059
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
13.1%
Children face moderate poverty.
Children under 1817.2%
Working age (18–64)12.0%
Seniors (65+)11.8%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
97.4%
speak English only
Spanish1.6%
Other Indo-European0.5%
Asian & Pacific Islander0.4%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 57.7% of residents not counted as adherents by any reporting body.
With a 2024 presidential margin of R+26.8, this sparsely populated district of roughly 32,000 residents reflects the strong Republican lean that defines much of rural southwestern Iowa's political landscape.
The district's recent history is a story of close margins. The Democratic margin reached thirty-two points in 1964; the Republican margin reached thirty-four points in 1920. Most other elections have been decided by single-digit points.
Its demographics — a population of 27,136, a 91% non-Hispanic-white share, a median household income of $62,382 — situate the district close to national averages on several dimensions.
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.
State House District 100, Iowa. Akashic. https://akashic.app/sld-lower/19100/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 100, Iowa vote in 2024?
In 2024, State House District 100, Iowa voted Republican by 27.7 points (R+28), carried by the Republican candidate. Out of 13,363 votes cast, 4,669 went Democratic and 8,375 went Republican.
What is State House District 100, Iowa's political archetype?
Akashic classifies State House District 100, Iowa as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 18 times, Republican 16 times, and other 0 times.
When did State House District 100, Iowa last vote Democratic?
The most recent presidential election in which State House District 100, Iowa voted Democratic was 2012.
How many people live in State House District 100, Iowa?
State House District 100, Iowa has a population of 27,136 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State House District 100, Iowa?
Median household income in State House District 100, Iowa is $62,382 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of State House District 100, Iowa?
Akashic tracks 38 presidential elections in State House District 100, Iowa from 1876 to 2024. Of those, 18 went Democratic and 16 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.