Iowa 99th State House District, Iowa: Bellwether district. In 2024, voted R+20%. Democratic peak: D+37 in 1964.
Key facts
- 2024 presidential margin
- R+20MIT Election Lab
- Political archetype
- BellwetherAkashic typology
- Population
- 16,0242024 5-year
- Median household income
- $62,7322024 5-year
- White (non-Hispanic)
- 87.5%2024 5-year
- Black
- 4.0%2024 5-year
- Hispanic / Latino
- 3.6%2024 5-year
- Peak Democratic margin
- D+37 in 1964MIT Election Lab
- Peak Republican margin
- R+36 in 1920MIT Election Lab
Constituent county margins for State House District 99, 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 | 3,108 | 4,656 | 7,918 | ||
| R | 3,517 | 4,536 | 8,253 | ||
| R | 3,279 | 4,083 | 8,002 | ||
| D | 5,046 | 3,533 | 8,748 | ||
| D | 5,044 | 3,296 | 8,502 | ||
| D | 5,100 | 3,501 | 8,694 | ||
| D | 4,714 | 3,080 | 8,067 | ||
| D | 4,416 | 2,405 | 7,696 | ||
| D | 4,656 | 2,538 | 8,655 | ||
| D | 5,002 | 3,131 | 8,194 | ||
| D | 4,541 | 4,082 | 8,679 | ||
| D | 4,098 | 3,982 | 8,643 | ||
| D | 4,584 | 3,841 | 8,535 | ||
| R | 3,680 | 4,431 | 8,247 | ||
| D | 4,125 | 3,809 | 8,486 | ||
| D | 5,849 | 2,661 | 8,524 | ||
| R | 4,372 | 4,732 | 9,116 | ||
| R | 3,782 | 5,000 | 8,794 | ||
| R | 3,826 | 5,400 | 9,260 | ||
| D | 3,955 | 3,398 | 7,475 | ||
| R | 3,456 | 4,177 | 7,686 | ||
| R | 3,350 | 4,789 | 8,160 | ||
| D | 3,555 | 3,371 | 7,569 | ||
| D | 4,365 | 2,731 | 7,314 | ||
| R | 2,850 | 4,851 | 7,753 | ||
| R | 1,555 | 3,882 | 7,166 | ||
| R | 1,826 | 4,094 | 6,323 | ||
| R | 1,720 | 1,871 | 3,729 | ||
| D | 1,526 | 923 | 3,642 | ||
| D | 1,884 | 1,854 | 3,865 | ||
| R | 1,485 | 2,006 | 3,745 | ||
| D | 1,949 | 1,936 | 3,981 | ||
| R | 1,899 | 2,062 | 4,065 | ||
| D | 2,075 | 1,591 | 3,732 | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
30.6%
Irish
13.9%
English
10.9%
American
5.9%
French
1.8%
Scottish
1.7%
Italian
1.2%
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: 42.8 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
$62,732
State House District 99 ranks near the middle of US counties.
State House District 99$62,732
Iowa$75,059
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
12.9%
Children face moderate poverty.
Children under 1816.6%
Working age (18–64)12.1%
Seniors (65+)10.6%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
97.1%
speak English only
Spanish1.4%
Asian & Pacific Islander0.8%
Other Indo-European0.5%
Other languages0.2%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 61.8% of residents not counted as adherents by any reporting body.
With a 2024 presidential margin of R+27.5, this rural Iowa district sits well to the right of the national median, reflecting the broader realignment of small-town and agricultural communities that has reshaped the state's legislative map over the past decade.
The Democratic margin in Iowa 99th State House District has rarely exceeded thirty-seven points in modern history; the Republican margin has rarely exceeded thirty-six points. 2024 delivered the district to the Republican candidate by twenty points.
Its demographics resemble the country more than they resemble most districts. A 88% non-Hispanic-white share, a 13% poverty rate, and a median household income of $62,732 — all within the broad national range.
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 99, Iowa. Akashic. https://akashic.app/sld-lower/19099/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 99, Iowa vote in 2024?
In 2024, State House District 99, Iowa voted Republican by 19.6 points (R+20), carried by the Republican candidate. Out of 7,918 votes cast, 3,108 went Democratic and 4,656 went Republican.
What is State House District 99, Iowa's political archetype?
Akashic classifies State House District 99, Iowa as a "Bellwether" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 19 times, Republican 15 times, and other 0 times.
When did State House District 99, Iowa last vote Democratic?
The most recent presidential election in which State House District 99, Iowa voted Democratic was 2012.
How many people live in State House District 99, Iowa?
State House District 99, Iowa has a population of 16,024 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 99, Iowa?
Median household income in State House District 99, Iowa is $62,732 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of State House District 99, Iowa?
Akashic tracks 38 presidential elections in State House District 99, Iowa from 1876 to 2024. Of those, 19 went Democratic and 15 went Republican. The district's archetype — "Bellwether" — captures the overall trajectory of that voting record.