Iowa — Elections 1876–2024

Iowa: state. In 2024, voted R+13%. Republican peak: R+45 in 1920.

Key facts

2024 presidential margin: R+13MIT Election Lab
Political typology: Akashic typology
Population: 3,210,5072024 5-year
Median household income: $75,0592024 5-year
White (non-Hispanic): 84.2%2024 5-year
Black: 3.9%2024 5-year
Hispanic / Latino: 7.3%2024 5-year
Peak Democratic margin: D+24 in 1964MIT Election Lab
Peak Republican margin: R+45 in 1920MIT Election Lab

2024 presidential election

Iowa

TrumpR+13

—

How it voted

Share of the 2024 vote

Donald Trump ✓Republican	55.7%	927,019
Kamala HarrisDemocratic	42.5%	707,278
OtherAll other candidates	1.8%	29,209

D+60

R+60

99 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.

presidential history

Presidential margin, 1876–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1876	No data
1880	No data
1884	No data
1888	No data
1892	−5.3%
1896	−12.6%
1900	−18.6%
1904	−32.7%
1908	−15.0%
1912	+13.3%
1916	−11.4%
1920	−45.5%
1924	−38.6%
1928	−24.2%
1932	+17.7%
1936	+11.7%
1940	−4.4%
1944	−4.5%
1948	+2.7%
1952	−28.2%
1956	−18.4%
1960	−13.5%
1964	+24.0%
1968	−12.2%
1972	−17.1%
1976	−1.0%
1980	−12.7%
1984	−7.4%
1988	+10.2%
1992	+6.0%
1996	+10.3%
2000	+0.3%
2004	−0.7%
2008	+9.5%
2012	+5.8%
2016	−9.3%
2020	−8.2%
2024	−13.2%

DemocraticRepublican

38 presidential elections

Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year	Won	Margin	Democratic	Republican	Total
2024	R	−13.2%	707,278	927,019	1,663,506
2020	R	−8.2%	759,061	897,672	1,690,871
2016	R	−9.3%	653,669	800,983	1,581,371
2012	D	+5.8%	822,544	730,617	1,582,180
2008	D	+9.5%	828,940	682,379	1,536,820
2004	R	−0.7%	741,898	751,957	1,506,908
2000	D	+0.3%	638,517	634,373	1,315,563
1996	D	+10.3%	620,258	492,644	1,234,075
1992	D	+6.0%	586,353	504,891	1,354,607
1988	D	+10.2%	670,557	545,355	1,225,614
1984	R	−7.4%	605,620	703,088	1,319,805
1980	R	−12.7%	508,672	676,026	1,317,661
1976	R	−1.0%	619,931	632,863	1,279,306
1972	R	−17.1%	496,206	706,207	1,225,944
1968	R	−12.2%	476,699	619,106	1,167,931
1964	D	+24.0%	733,030	449,148	1,184,539
1960	R	−13.5%	550,565	722,381	1,273,810
1956	R	−18.4%	501,858	729,187	1,234,564
1952	R	−28.2%	451,513	808,906	1,268,773
1948	D	+2.7%	522,380	494,018	1,038,264
1944	R	−4.5%	499,876	547,267	1,052,599
1940	R	−4.4%	578,802	632,370	1,215,432
1936	D	+11.7%	621,756	487,977	1,142,733
1932	D	+17.7%	598,019	414,433	1,036,687
1928	R	−24.2%	379,011	623,570	1,009,189
1924	R	−38.6%	160,382	537,458	976,770
1920	R	−45.5%	227,804	634,674	894,965
1916	R	−11.4%	220,597	279,331	514,704
1912	O	+13.3%	185,325	119,805	492,356
1908	R	−15.0%	200,771	275,209	494,769
1904	R	−32.7%	149,276	308,158	486,093
1900	R	−18.6%	209,265	307,808	530,355
1896	R	−12.6%	223,611	289,463	521,587
1892	R	−5.3%	196,370	219,795	443,125
1888	—	No data	—	—	—
1884	—	No data	—	—	—
1880	—	No data	—	—	—
1876	—	No data	—	—	—

Congressional elections · 16 Senate races

U.S. Senate

Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year	Won	D %	R %	Total
2022	R	43.3%	55.4%	1,230,416
2020	R	44.4%	50.9%	1,700,130
2016	R	35.7%	60.1%	1,541,036
2014	R	43.8%	52.1%	1,129,700
2010	R	33.3%	64.4%	1,116,063
2008	D	62.7%	37.3%	1,502,918
2004	R	27.9%	70.2%	1,479,228
2002	D	54.2%	43.8%	1,023,075
1998	R	30.5%	68.4%	947,907
1996	D	51.8%	46.7%	1,224,054
1992	R	27.2%	69.6%	1,292,494
1990	D	54.5%	45.4%	983,933
1986	R	33.6%	66.0%	891,762
1984	D	55.5%	43.7%	1,292,700
1980	R	45.5%	53.5%	1,276,986
1978	R	47.9%	51.1%	824,576

Demographics

2024 ACS

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

German

30.5%

Irish

12.8%

English

10.2%

American

4.6%

Italian

1.9%

Scottish

1.4%

French

1.3%

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: 38.8 in this county, 39.1 nationally

Male

Age

Female

0.8%

85+

1.5%

2.3%

75–84

2.9%

5.2%

65–74

5.4%

6.3%

55–64

6.3%

5.8%

45–54

5.5%

6.5%

35–44

6.1%

6.4%

25–34

6.1%

5.2%

18–24

4.8%

8.7%

5–17

8.3%

3.0%

2.8%

Source · American Community Survey 5-year estimates, 2024 release.

2024 ACS

Median household income

Inflation-adjusted dollars

$75,059

Iowa ranks near the middle of US counties.

Iowa$75,059

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

2024 ACS

Poverty rate

All persons below federal poverty line

11.1%

Child poverty is below the national average.

Children under 1812.8%

Working age (18–64)10.6%

Seniors (65+)9.5%

Source · American Community Survey 5-year estimates, 2024 release.

2024 ACS

Language at home

Population aged 5 and older

90.8%

speak English only

Spanish4.7%

Other Indo-European1.8%

Asian & Pacific Islander1.7%

Other languages0.9%

Source · ACS 5-year estimates, 2024.

2020 religion census

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

14.8%

Mainline Protestant

14.0%

Other Christian

6.1%

Methodist

5.5%

Pentecostal & Holiness

1.8%

Baptist

1.5%

Non-Christian

1.1%

Source · 2020 US Religion Census. Remaining 55.2% of residents not counted as adherents by any reporting body.

Iowa sits in the Corn Belt. In 2024 it voted Republican.

Across the recorded series it reached a Democratic high of twenty-four points in 1964 and a Republican high of forty-five points in 1920. Between 2020 and 2024 the state moved five points toward the Republican candidate; the 2024 margin was thirteen points.

A population of 3,210,507, a 84% non-Hispanic-white share, and a median household income of $75,059 describe the state.

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.

Iowa. Akashic. https://akashic.app/state/IA/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did Iowa vote in 2024?

In 2024, Iowa voted Republican by 13.2 points (R+13), carried by the Republican candidate. Out of 1,663,506 votes cast, 707,278 went Democratic and 927,019 went Republican.

What is Iowa's political typology?

Akashic places Iowa in the "" typology. 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 state has voted Democratic 10 times, Republican 23 times, and other 1 times.

When did Iowa last vote Democratic?

The most recent presidential election in which Iowa voted Democratic was 2012.

How many people live in Iowa?

Iowa has a population of 3,210,507 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Iowa?

Median household income in Iowa is $75,059 — below the national median of $80,734. The Iowa state median is $75,059.

What is the political history of Iowa?

Akashic tracks 38 presidential elections in Iowa from 1876 to 2024. Of those, 10 went Democratic and 23 went Republican. The state's typology — "" — captures where that record, its demographics, and its recent swing place it among American communities.

Scott County, IA	R +9,121
Polk County, IA	R +6,977
Black Hawk County, IA	R +6,942

Iowa moved 5 points toward the Republican candidate between 2020 and 2024.

Key facts

U.S. Senate

Demographics

Compare two places, side by side

Frequently asked questions