Henry County, Iowa: Heartland Swing county. In 2024, voted R+36%. Republican peak: R+45 in 1920.
Key facts
- 2024 presidential margin
- R+36MIT Election Lab
- Political typology
- Heartland SwingAkashic typology
- Population
- 20,0042024 5-year
- Median household income
- $67,4362024 5-year
- White (non-Hispanic)
- 88.2%2024 5-year
- Black
- 2.5%2024 5-year
- Hispanic / Latino
- 5.5%2024 5-year
- Peak Democratic margin
- D+14 in 1932MIT Election Lab
- Peak Republican margin
- R+45 in 1920MIT Election Lab
- Most similar
- Switzerland County, IN · similarity 0.99
2024 results by precinct
2024 precinct map of Henry CountyPrecinct-level 2024 presidential results for Henry County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
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 | −15.5% |
| 1896 | −13.7% |
| 1900 | −18.3% |
| 1904 | −33.8% |
| 1908 | −24.0% |
| 1912 | −2.0% |
| 1916 | −17.4% |
| 1920 | −45.4% |
| 1924 | −43.8% |
| 1928 | −42.7% |
| 1932 | +13.9% |
| 1936 | −11.3% |
| 1940 | −34.9% |
| 1944 | −30.8% |
| 1948 | −20.2% |
| 1952 | −44.6% |
| 1956 | −37.1% |
| 1960 | −32.1% |
| 1964 | +13.0% |
| 1968 | −27.2% |
| 1972 | −29.7% |
| 1976 | +0.4% |
| 1980 | −13.2% |
| 1984 | −14.3% |
| 1988 | −2.5% |
| 1992 | +1.3% |
| 1996 | +3.9% |
| 2000 | −6.6% |
| 2004 | −11.6% |
| 2008 | −5.0% |
| 2012 | −5.9% |
| 2016 | −30.3% |
| 2020 | −32.4% |
| 2024 | −35.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 2,995 | 6,439 | 9,600 | ||
| R | 3,275 | 6,507 | 9,982 | ||
| R | 2,904 | 5,779 | 9,500 | ||
| R | 4,460 | 5,035 | 9,697 | ||
| R | 4,349 | 4,822 | 9,377 | ||
| R | 4,127 | 5,220 | 9,457 | ||
| R | 3,907 | 4,476 | 8,671 | ||
| D | 3,798 | 3,478 | 8,275 | ||
| D | 3,544 | 3,435 | 8,628 | ||
| R | 3,754 | 3,951 | 7,758 | ||
| R | 3,377 | 4,516 | 7,955 | ||
| R | 3,317 | 4,430 | 8,462 | ||
| D | 3,882 | 3,848 | 7,887 | ||
| R | 2,721 | 5,066 | 7,884 | ||
| R | 2,532 | 4,613 | 7,659 | ||
| D | 4,223 | 3,247 | 7,482 | ||
| R | 2,839 | 5,531 | 8,377 | ||
| R | 2,667 | 5,818 | 8,495 | ||
| R | 2,438 | 6,424 | 8,931 | ||
| R | 3,042 | 4,620 | 7,805 | ||
| R | 2,741 | 5,208 | 7,998 | ||
| R | 2,837 | 5,893 | 8,749 | ||
| R | 3,542 | 4,480 | 8,271 | ||
| D | 4,518 | 3,398 | 8,074 | ||
| R | 2,053 | 5,160 | 7,278 | ||
| R | 1,344 | 4,536 | 7,296 | ||
| R | 1,939 | 5,254 | 7,306 | ||
| R | 1,728 | 2,470 | 4,259 | ||
| R | 1,580 | 1,663 | 4,251 | ||
| R | 1,606 | 2,653 | 4,356 | ||
| R | 1,259 | 2,647 | 4,106 | ||
| R | 1,907 | 2,794 | 4,847 | ||
| R | 2,092 | 2,774 | 4,969 | ||
| R | 1,710 | 2,390 | 4,382 | ||
| — | — | — | — | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
30.5%
Irish
11.7%
English
10.2%
American
5.9%
Italian
1.8%
Polish
1.7%
French
1.6%
African American
2.0%
Multiple ancestry combinations reported; no single grouping above 1%.
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: 41.1 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
$67,436
Henry County ranks near the middle of US counties.
Henry County$67,436
Iowa$75,059
United States$80,734
Henry 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
12.0%
Children face moderate poverty.
Children under 1815.2%
Working age (18–64)11.1%
Seniors (65+)10.3%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
95.6%
speak English only
Spanish2.9%
Asian & Pacific Islander1.0%
Other Indo-European0.4%
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 66.7% of residents not counted as adherents by any reporting body.
Henry County's blend of small manufacturing towns and agricultural land has tracked a steady rightward shift over two decades, with 2024's R+35.9 margin reflecting a pattern consistent across Iowa's non-metro southeast corridor.
The Democratic margin here peaked at fourteen points in 1932. Between 2020 and 2024 the county moved three points toward the Republican candidate; the 2024 margin was thirty-six points.
A population of 20,004, a 88% non-Hispanic-white share, and a median household income of $67,436 describe the county. The county's voting pattern over the last decade is most similar to that of Switzerland County and Todd 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.
Henry County, Iowa. Akashic. https://akashic.app/county/19087/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More heartland swing counties
Frequently asked questions
How did Henry County, Iowa vote in 2024?
In 2024, Henry County, Iowa voted Republican by 35.9 points (R+36), carried by the Republican candidate. Out of 9,600 votes cast, 2,995 went Democratic and 6,439 went Republican.
What is Henry County, Iowa's political typology?
Akashic places Henry County, Iowa in the "Heartland Swing" typology — Industrial Midwest swing counties drifting steadily toward the Republican Party. 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 5 times, Republican 29 times, and other 0 times.
When did Henry County, Iowa last vote Democratic?
The most recent presidential election in which Henry County, Iowa voted Democratic was 1996.
How many people live in Henry County, Iowa?
Henry County, Iowa has a population of 20,004 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Henry County, Iowa?
Median household income in Henry County, Iowa is $67,436 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Henry County, Iowa?
Akashic tracks 38 presidential elections in Henry County, Iowa from 1876 to 2024. Of those, 5 went Democratic and 29 went Republican. The county's typology — "Heartland Swing" — captures where that record, its demographics, and its recent swing place it among American communities.