akashic
1876–2024
Congressional District 4·Iowa

Iowa 4th Congressional District has voted Republican in nine straight presidential cycles.

1876 — 2024·38 elections
IA
Latest
R+31
in 2024
Archetype
Republican loyalist
since the recent cycles
Population
798,043
2024 ACS

Iowa 4th Congressional District, Iowa: Republican loyalist district. In 2024, voted R+31%. Republican peak: R+48 in 1920.

Key facts

2024 presidential margin
R+31MIT Election Lab
Political archetype
Republican loyalistAkashic typology
Population
798,0432024 5-year
Median household income
$72,9242024 5-year
White (non-Hispanic)
84.0%2024 5-year
Black
2.0%2024 5-year
Hispanic / Latino
10.4%2024 5-year
Peak Democratic margin
D+27 in 1932MIT Election Lab
Peak Republican margin
R+48 in 1920MIT Election Lab
2024 results by constituent county
50 counties · 2 D · 48 R
R+60
D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
R
−31.4%
131,716255,124393,511
R
−26.0%
146,824252,575407,196
R
−26.7%
129,663235,036394,337
R
−9.1%
173,813209,398390,390
R
−3.5%
184,168197,868388,271
R
−13.3%
167,196219,021389,639
R
−11.2%
146,575184,912342,515
R
−0.3%
147,510148,356331,414
R
−2.7%
140,799150,684365,577
D
+2.6%
172,694163,940339,450
R
−15.0%
155,947211,609370,907
R
−22.0%
128,850211,774376,280
R
−6.2%
168,758191,521367,471
R
−23.3%
132,898215,452354,393
R
−19.3%
129,542196,092344,854
D
+19.3%
213,290144,203358,209
R
−16.5%
163,155227,515390,870
R
−19.3%
153,434227,105381,858
R
−33.4%
129,695260,993393,288
D
+4.2%
164,275150,704322,220
R
−2.7%
157,238166,011324,773
R
−1.1%
189,927193,991385,153
D
+19.3%
211,261141,097363,630
D
+26.7%
206,035117,431331,426
R
−19.2%
124,427184,233310,824
R
−36.6%
46,106156,958302,537
R
−48.3%
67,621201,299276,511
R
−10.3%
69,46285,867158,721
O
+13.8%
52,94131,938152,423
R
−20.1%
57,52487,772150,536
R
−40.2%
40,04699,334147,322
R
−24.3%
60,224100,216164,255
R
−15.7%
66,31191,439159,921
R
−9.7%
54,10166,659129,761
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Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
31.6%
Irish
10.5%
English
8.4%
American
5.3%
Italian
1.5%
French
1.0%
Scottish
1.0%
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: 38.5 in this county, 39.1 nationally
Male
Age
Female
0.9%
85+
1.6%
2.4%
75–84
3.0%
5.5%
65–74
5.6%
6.3%
55–64
6.3%
5.6%
45–54
5.2%
6.1%
35–44
5.6%
6.1%
25–34
5.5%
6.1%
18–24
5.2%
8.8%
5–17
8.3%
3.0%
<5
2.7%
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$72,924
Congressional District 4 ranks near the middle of US counties.
Congressional District 4$72,924
Iowa$75,059
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
11.7%
Child poverty is below the national average.
Children under 1813.3%
Working age (18–64)11.0%
Seniors (65+)10.8%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
89.6%
speak English only
Spanish7.2%
Asian & Pacific Islander1.6%
Other Indo-European1.1%
Other languages0.5%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Mainline Protestant
19.7%
Catholic & Orthodox
15.8%
Methodist
6.8%
Other Christian
5.9%
Baptist
1.1%
Pentecostal & Holiness
1.0%
Non-Christian
0.4%
Source · 2020 US Religion Census. Remaining 49.3% of residents not counted as adherents by any reporting body.

Iowa 4th Congressional District sits in the Corn Belt. Its political identity has been Republican for as long as anyone now living can remember. 1 consecutive presidential elections in modern records have gone for the Republican candidate, often by margins that would be considered landslide territory anywhere else.

The Republican margin in Iowa 4th Congressional District reached its widest at forty-eight points in 1920. The margin in 2024 was thirty-one points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $72,924, a 84% non-Hispanic-white share, and a population of 798,043 together describe a district whose political habits are deeply settled.

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Congressional District 4, Iowa — The Long Memory. Akashic Intelligence — The Long Memory. https://tiers.akashic.app/cd/1904/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Congressional District 4, Iowa vote in 2024?
In 2024, Congressional District 4, Iowa voted Republican by 31.4 points (R+31), carried by the Republican candidate. Out of 393,511 votes cast, 131,716 went Democratic and 255,124 went Republican.
What is Congressional District 4, Iowa's political archetype?
Akashic classifies Congressional District 4, Iowa as a "Republican loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 5 times, Republican 28 times, and other 1 times.
When did Congressional District 4, Iowa last vote Democratic?
The most recent presidential election in which Congressional District 4, Iowa voted Democratic was 1988.
How many people live in Congressional District 4, Iowa?
Congressional District 4, Iowa has a population of 798,043 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Congressional District 4, Iowa?
Median household income in Congressional District 4, Iowa is $72,924 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Congressional District 4, Iowa?
Akashic tracks 38 presidential elections in Congressional District 4, Iowa from 1876 to 2024. Of those, 5 went Democratic and 28 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.