Iowa 42nd State House District, Iowa: Democratic loyalist district. In 2024, voted D+11%. Republican peak: R+57 in 1904.
Key facts
- 2024 presidential margin
- D+11MIT Election Lab
- Political archetype
- Democratic loyalistAkashic typology
- Population
- 13,4672024 5-year
- Median household income
- $83,5762024 5-year
- White (non-Hispanic)
- 75.8%2024 5-year
- Black
- 7.4%2024 5-year
- Hispanic / Latino
- 10.4%2024 5-year
- Peak Democratic margin
- D+33 in 1964MIT Election Lab
- Peak Republican margin
- R+57 in 1904MIT Election Lab
Constituent county margins for State House District 42, 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 |
|---|---|---|---|---|---|
| D | 3,749 | 3,004 | 6,874 | ||
| D | 3,914 | 2,858 | 6,925 | ||
| D | 3,206 | 2,502 | 6,246 | ||
| D | 3,438 | 2,572 | 6,126 | ||
| D | 3,238 | 2,400 | 5,738 | ||
| D | 2,816 | 2,565 | 5,423 | ||
| D | 2,401 | 2,139 | 4,661 | ||
| D | 2,245 | 1,629 | 4,178 | ||
| D | 2,103 | 1,705 | 4,476 | ||
| D | 2,261 | 1,548 | 3,831 | ||
| D | 2,018 | 1,911 | 3,957 | ||
| R | 1,659 | 1,717 | 3,847 | ||
| D | 1,925 | 1,668 | 3,687 | ||
| R | 1,584 | 1,880 | 3,550 | ||
| D | 1,411 | 1,387 | 3,072 | ||
| D | 1,986 | 998 | 2,996 | ||
| R | 1,474 | 1,715 | 3,191 | ||
| R | 1,419 | 1,670 | 3,091 | ||
| R | 1,361 | 1,631 | 3,018 | ||
| D | 1,212 | 903 | 2,178 | ||
| D | 1,233 | 980 | 2,224 | ||
| D | 1,382 | 1,104 | 2,494 | ||
| D | 1,185 | 905 | 2,127 | ||
| R | 843 | 911 | 1,838 | ||
| R | 528 | 1,132 | 1,673 | ||
| R | 178 | 1,003 | 1,613 | ||
| R | 436 | 965 | 1,445 | ||
| D | 330 | 302 | 660 | ||
| O | 194 | 125 | 604 | ||
| R | 212 | 336 | 579 | ||
| R | 83 | 378 | 521 | ||
| R | 165 | 338 | 522 | ||
| R | 190 | 298 | 494 | ||
| R | 148 | 208 | 386 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
24.5%
Irish
13.3%
English
11.8%
American
3.3%
Italian
3.2%
Scottish
2.0%
French
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: 36.2 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
$83,576
State House District 42 ranks near the middle of US counties.
State House District 42$83,576
Iowa$75,059
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
10.3%
Child poverty is below the national average.
Children under 1814.0%
Working age (18–64)9.3%
Seniors (65+)7.1%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
85.3%
speak English only
Spanish7.0%
Asian & Pacific Islander3.3%
Other Indo-European2.4%
Other languages2.0%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 61.3% of residents not counted as adherents by any reporting body.
With a 2024 presidential margin of just 0.6 points, this 31,900-person district sits at the competitive edge of Iowa's legislative map, where small shifts in turnout can determine control of a seat.
The Democratic margin in Iowa 42nd State House District reached its widest at thirty-three points in 1964. The margin in 2024 was eleven points — still decisive.
Its loyalty is rooted in its place. Median household income of $83,576, a 76% non-Hispanic-white share, and a population of 13,467 together describe a district whose political habits are deeply settled.
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 42, Iowa. Akashic. https://akashic.app/sld-lower/19042/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 42, Iowa vote in 2024?
In 2024, State House District 42, Iowa voted Democratic by 10.8 points (D+11), carried by the Democratic candidate. Out of 6,874 votes cast, 3,749 went Democratic and 3,004 went Republican.
What is State House District 42, Iowa's political archetype?
Akashic classifies State House District 42, Iowa as a "Democratic loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 19 times, Republican 14 times, and other 1 times.
When did State House District 42, Iowa last vote Republican?
The most recent presidential election in which State House District 42, Iowa voted Republican was 1980.
How many people live in State House District 42, Iowa?
State House District 42, Iowa has a population of 13,467 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 42, Iowa?
Median household income in State House District 42, Iowa is $83,576 — above the national median of $80,734. The Iowa state median is $75,059.
What is the political history of State House District 42, Iowa?
Akashic tracks 38 presidential elections in State House District 42, Iowa from 1876 to 2024. Of those, 19 went Democratic and 14 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.