Cass County, Iowa: Farm Belt county. In 2024, voted R+41%. Republican peak: R+58 in 1920.
Key facts
- 2024 presidential margin
- R+41MIT Election Lab
- Political typology
- Farm BeltAkashic typology
- Population
- 13,0962024 5-year
- Median household income
- $63,0132024 5-year
- White (non-Hispanic)
- 94.6%2024 5-year
- Black
- 0.9%2024 5-year
- Hispanic / Latino
- 2.7%2024 5-year
- Peak Democratic margin
- D+1 in 1932MIT Election Lab
- Peak Republican margin
- R+58 in 1920MIT Election Lab
- Most similar
- Burt County, NE · similarity 1.00
2024 results by precinct
2024 precinct map of Cass CountyPrecinct-level 2024 presidential results for Cass County, with each precinct boundary colored by Democratic-vs-Republican margin.
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −7.0% |
| 1896 | −13.6% |
| 1900 | −21.5% |
| 1904 | −35.6% |
| 1908 | −25.0% |
| 1912 | −4.8% |
| 1916 | −20.8% |
| 1920 | −58.3% |
| 1924 | −55.5% |
| 1928 | −39.5% |
| 1932 | +1.4% |
| 1936 | −13.4% |
| 1940 | −25.7% |
| 1944 | −31.3% |
| 1948 | −20.3% |
| 1952 | −51.5% |
| 1956 | −36.8% |
| 1960 | −34.5% |
| 1964 | −2.1% |
| 1968 | −39.8% |
| 1972 | −45.6% |
| 1976 | −22.8% |
| 1980 | −39.6% |
| 1984 | −35.0% |
| 1988 | −14.8% |
| 1992 | −13.4% |
| 1996 | −11.2% |
| 2000 | −25.1% |
| 2004 | −28.1% |
| 2008 | −10.8% |
| 2012 | −18.9% |
| 2016 | −39.0% |
| 2020 | −38.0% |
| 2024 | −40.6% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 2,077 | 5,007 | 7,217 | ||
| R | 2,201 | 4,969 | 7,276 | ||
| R | 1,951 | 4,761 | 7,198 | ||
| R | 2,858 | 4,217 | 7,205 | ||
| R | 3,211 | 4,006 | 7,350 | ||
| R | 2,679 | 4,796 | 7,543 | ||
| R | 2,481 | 4,206 | 6,880 | ||
| R | 2,616 | 3,384 | 6,865 | ||
| R | 2,231 | 3,176 | 7,058 | ||
| R | 2,934 | 3,962 | 6,968 | ||
| R | 2,417 | 5,053 | 7,531 | ||
| R | 2,176 | 5,391 | 8,126 | ||
| R | 2,866 | 4,589 | 7,549 | ||
| R | 1,923 | 5,234 | 7,263 | ||
| R | 2,136 | 5,223 | 7,761 | ||
| R | 4,006 | 4,182 | 8,198 | ||
| R | 3,059 | 6,290 | 9,354 | ||
| R | 2,818 | 6,103 | 8,930 | ||
| R | 2,349 | 7,355 | 9,727 | ||
| R | 3,372 | 5,106 | 8,559 | ||
| R | 2,928 | 5,610 | 8,561 | ||
| R | 3,763 | 6,377 | 10,172 | ||
| R | 4,284 | 5,622 | 9,962 | ||
| D | 4,339 | 4,215 | 8,645 | ||
| R | 2,640 | 6,120 | 8,815 | ||
| R | 1,099 | 5,721 | 8,328 | ||
| R | 1,668 | 6,558 | 8,383 | ||
| R | 1,801 | 2,763 | 4,624 | ||
| R | 1,510 | 1,724 | 4,495 | ||
| R | 1,655 | 2,799 | 4,574 | ||
| R | 1,394 | 3,050 | 4,653 | ||
| R | 2,010 | 3,128 | 5,203 | ||
| R | 2,240 | 2,959 | 5,274 | ||
| R | 1,990 | 2,317 | 4,677 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
28.9%
Irish
12.0%
English
11.8%
American
5.8%
Italian
2.1%
Scottish
1.8%
French
1.1%
Sample size too small to break out by ancestry reliably.
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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.
2024 ACS
Age distribution by sex
Median age: 43.5 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.
2024 ACS
Median household income
Inflation-adjusted dollars
$63,013
Cass County ranks near the middle of US counties.
Cass County$63,013
Iowa$75,059
United States$80,734
Cass County ranks near the middle of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
14.3%
Children face moderate poverty.
Children under 1821.3%
Working age (18–64)11.9%
Seniors (65+)13.6%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
98.6%
speak English only
Other Indo-European0.7%
Spanish0.6%
Asian & Pacific Islander0.1%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 50.4% of residents not counted as adherents by any reporting body.
Cass County has delivered Republican presidential margins exceeding 35 points in each of the last three cycles, reflecting the deep-red drift of Iowa's rural, agriculture-dependent southwest corner.
The Republican margin here reached fifty-eight points in 1920. Between 2020 and 2024 the county moved three points toward the Republican candidate; the 2024 margin was forty-one points.
A population of 13,096, a 95% non-Hispanic-white share, and a median household income of $63,013 describe an agricultural county. The county's voting pattern over the last decade is most similar to that of Burt County and Brown County.
Most similar counties
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.
Cass County, Iowa. Akashic. https://akashic.app/county/19029/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More farm belt counties
Frequently asked questions
How did Cass County, Iowa vote in 2024?
In 2024, Cass County, Iowa voted Republican by 40.6 points (R+41), carried by the Republican candidate. Out of 7,217 votes cast, 2,077 went Democratic and 5,007 went Republican.
What is Cass County, Iowa's political typology?
Akashic places Cass County, Iowa in the "Farm Belt" typology — Rural Plains and Midwest farm counties — Republican, with modest recent movement. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 1 times, Republican 33 times, and other 0 times.
When did Cass County, Iowa last vote Democratic?
The most recent presidential election in which Cass County, Iowa voted Democratic was 1932.
How many people live in Cass County, Iowa?
Cass County, Iowa has a population of 13,096 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Cass County, Iowa?
Median household income in Cass County, Iowa is $63,013 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Cass County, Iowa?
Akashic tracks 38 presidential elections in Cass County, Iowa from 1876 to 2024. Of those, 1 went Democratic and 33 went Republican. The county's typology — "Farm Belt" — captures where that record, its demographics, and its recent swing place it among American communities.