akashic
1876–2024
Sioux City-Le Mars, IA-NE-SD·Iowa

Sioux City-Le Mars, IA-NE-SD has voted Republican in nine straight presidential elections — R+31.7 in 2024.

2008 — 2024·5 elections
IA
2024 presidential election
Sioux City-Le Mars, IA-NE-SD
TrumpR+31.7
2024 presidential margin by county for Sioux City-Le Mars, IA-NE-SD, IAA map of the constituent counties of Sioux City-Le Mars, IA-NE-SD, IA, each outlined and filled by its 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), seated within the faint outlines of the surrounding states.Union County, SD · R+40.7Plymouth County, IA · R+54.1Woodbury County, IA · R+22.9Dakota County, NE · R+29.7
How it voted
Share of the 2024 vote
Donald Trump ✓Republican65.0%46,724
Kamala HarrisDemocratic33.2%23,906
OtherAll other candidates1.8%1,276
D+60
R+60
4 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 timeDemocratic-minus-Republican presidential margin from 1876 to 2024. Most recent: −31.7% in 2024.flipped R · 1992−31.7%DR18762024
Presidential margin over time
YearMargin (D minus R)
1876No data
1880No data
1884No data
1888No data
1892−1.7%
1896−5.0%
1900−12.8%
1904−37.7%
1908−10.5%
1912+20.5%
1916+12.0%
1920−33.1%
1924−27.9%
1928−6.9%
1932+38.1%
1936+27.4%
1940−3.6%
1944−2.4%
1948+10.2%
1952−23.4%
1956−14.8%
1960−11.0%
1964+18.9%
1968−11.4%
1972−16.2%
1976−7.3%
1980−20.8%
1984−13.1%
1988+2.0%
1992−4.3%
1996−0.6%
2000−5.6%
2004−8.6%
2008−6.6%
2012−8.5%
2016−27.5%
2020−24.5%
2024−31.7%
DemocraticRepublican
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
R
−31.7%
23,90646,72471,906
R
−24.5%
27,66746,09875,222
R
−27.5%
23,63643,31371,617
R
−8.5%
32,17038,23071,701
R
−6.6%
32,85037,58671,410
R
−8.6%
31,76037,77470,080
R
−5.6%
27,15030,53059,847
R
−0.6%
25,97926,31158,612
R
−4.3%
25,11427,92164,909
D
+2.0%
29,92728,75759,079
R
−13.1%
27,14635,38263,056
R
−20.8%
22,65536,02164,163
R
−7.3%
28,78033,37163,158
R
−16.2%
25,30935,24661,365
R
−11.4%
25,07031,99060,501
D
+18.9%
38,01425,90063,946
R
−11.0%
31,23538,92970,170
R
−14.8%
28,06637,79765,912
R
−23.4%
25,85041,69467,752
D
+10.2%
31,00425,24156,716
R
−2.4%
27,46428,83356,422
R
−3.6%
33,31835,81369,243
D
+27.4%
39,10221,39964,514
D
+38.1%
40,53617,89659,379
R
−6.9%
25,70629,55955,484
R
−27.9%
9,12223,34250,988
R
−33.1%
13,33027,16041,730
D
+12.0%
13,21710,32624,014
O
+20.5%
8,1793,67421,923
R
−10.5%
9,11511,33021,184
R
−37.7%
5,60113,17020,090
R
−12.8%
9,23812,02021,814
R
−5.0%
9,69310,74320,801
R
−1.7%
7,0357,32217,147
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Demographics

Demographic profile

Demographic Profile

Key indicators compared across containing geographies

Demographic Profile. Key indicators compared across containing geographies. ACS values are survey estimates and may include margins of error. Religion data may be available only at county or larger geographies. Sub-county values are labeled when inherited, modeled, or contextual.
IndicatorSioux City-Le Mars, IA-NE-SDCombined statistical areaUnited StatesNation
Race & Ethnicity
White72.5%61.0%
Black4.6%12.2%
Asian2.1%6.0%
Two or more races12.8%12.6%
Other race8.1%8.2%
Hispanic or Latino18.6%19.3%
Income & Age
Median household income$76,291$84,427
Poverty rate11.8%12.5%
Median age3739.1
Age 18–249.2%9.2%
Age 65 and older16.3%17.2%
Education & Language
Speaks a non-English language at home18.0%22.3%
Ancestry
Largest ancestryGerman 27.5%German 12.5%
2nd-largest ancestryIrish 11.3%English 9.5%
3rd-largest ancestryAmerican 7.2%Irish 9.4%
Religion
Catholic21.8%18.6%
Evangelical Protestant10.2%16.5%
Unaffiliated or unclaimed51.9%51.5%
Mainline Protestant12.6%5.2%

ACS values are survey estimates and may include margins of error.

Religion data may be available only at county or larger geographies. Sub-county values are labeled when inherited, modeled, or contextual.

2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
27.5%
Irish
11.3%
American
7.2%
English
6.4%
French
1.7%
Polish
1.3%
Italian
1.2%
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: 37.0 in this county, 39.1 nationally
Male
Age
Female
0.5%
85+
1.1%
2.3%
75–84
2.5%
4.9%
65–74
5.0%
6.0%
55–64
6.0%
5.9%
45–54
5.4%
6.4%
35–44
6.1%
6.4%
25–34
6.1%
4.8%
18–24
4.4%
10.0%
5–17
9.3%
3.4%
<5
3.3%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$76,291
Sioux City-Le Mars, IA-NE-SD ranks near the middle of US counties.
Sioux City-Le Mars, IA-NE-SD$76,291
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
11.8%
Child poverty is below the national average.
Children under 1814.8%
Working age (18–64)10.6%
Seniors (65+)12.3%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
82.0%
speak English only
Spanish13.4%
Asian & Pacific Islander1.8%
Other languages1.6%
Other Indo-European1.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Catholic
21.8%
Mainline Protestant
12.6%
Evangelical Protestant
10.2%
Muslim
1.1%
Latter-day Saints
0.7%
Black Protestant
0.6%
Other Christian
0.5%
Orthodox Christian
0.4%
Other faiths
0.1%
Unaffiliated or not counted51.9%
Source · 2020 US Religion Census. The unaffiliated-or-not-counted share is everyone not claimed as an adherent by any reporting body — uncounted congregations as well as the religiously unaffiliated.

Sioux City-Le Mars, IA-NE-SD sits in the Corn Belt. In 2024 it voted Republican.

Across the recorded series it reached a Democratic high of 38.1 points in 1932 and a Republican high of 37.7 points in 1904. Between 2020 and 2024 the region moved 7.2 points toward the Republican candidate; the 2024 margin was 31.7 points.

A population of 170,429, a 73% non-Hispanic-white share, and a median household income of $76,291 describe the region.

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.
Sioux City-Le Mars, IA-NE-SD, Iowa. Akashic. https://akashic.app/csa/512/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Sioux City-Le Mars, IA-NE-SD, Iowa vote in 2024?
In 2024, Sioux City-Le Mars, IA-NE-SD, Iowa voted Republican by 31.7 points (R+31.7), carried by the Republican candidate. Out of 71,906 votes cast, 23,906 went Democratic and 46,724 went Republican.
What is Sioux City-Le Mars, IA-NE-SD, Iowa's political typology?
Akashic places Sioux City-Le Mars, IA-NE-SD, 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 region has voted Democratic 6 times, Republican 27 times, and other 1 times.
When did Sioux City-Le Mars, IA-NE-SD, Iowa last vote Democratic?
The most recent presidential election in which Sioux City-Le Mars, IA-NE-SD, Iowa voted Democratic was 1988.
How many people live in Sioux City-Le Mars, IA-NE-SD, Iowa?
Sioux City-Le Mars, IA-NE-SD, Iowa has a population of 170,429 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Sioux City-Le Mars, IA-NE-SD, Iowa?
Median household income in Sioux City-Le Mars, IA-NE-SD, Iowa is $76,291 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Sioux City-Le Mars, IA-NE-SD, Iowa?
Akashic tracks 38 presidential elections in Sioux City-Le Mars, IA-NE-SD, Iowa from 1876 to 2024. Of those, 6 went Democratic and 27 went Republican. The region's typology — "" — captures where that record, its demographics, and its recent swing place it among American communities.