akashic
1876–2024
Spencer·Iowa

Spencer moved 5.5 points toward the Republican candidate between 2020 and 2024.

20082024·5 elections
IA
Spencer
TrumpR+36.8
How it voted
Share of the 2024 vote
Donald TrumpRepublican67.5%3,754
Kamala HarrisDemocratic30.8%1,711
OtherAll other candidates1.7%94
D+60
R+60
1 counties, each filled by 2024 D-vs-R margin.
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: −36.8% in 2024.−36.8%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008−1.9%
2012−16.1%
2016−36.5%
2020−31.2%
2024−36.8%
DemocraticRepublican
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
R
30.8%Harris1,711
67.5%Trump3,754
1.7%
−36.8%
5,559
R
33.4%Biden1,982
64.6%Trump3,839
2.1%incl. Jorgensen
−31.2%
5,943
R
28.7%Clinton1,619
65.2%Trump3,674
6.0%incl. Johnson
−36.5%
5,633
R
42.0%Obama2,304
58.0%Romney3,188
0.0%
−16.1%
5,492
R
48.2%Obama2,673
50.1%McCain2,777
1.7%
−1.9%
5,543

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.
IndicatorSpencerCityIowaStateUnited StatesNation
Race & Ethnicity
White92.2%84.2%61.0%
Black0.4%3.9%12.2%
Asian0.9%2.5%6.0%
Two or more races3.7%6.6%12.6%
Other race2.8%2.9%8.2%
Hispanic or Latino5.6%7.3%19.3%
Income & Age
Median household income$59,667$75,059$84,427
Poverty rate14.0%11.1%12.5%
Median age41.438.839.1
Age 18–247.1%10.0%9.2%
Age 65 and older22.4%18.1%17.2%
Education & Language
Bachelor's degree or higher (25+)27.5%31.8%35.6%
Speaks a non-English language at home3.2%9.2%22.3%
Spanish2.3%4.7%13.6%
Ancestry
Largest ancestryGerman 42.9%German 30.5%German 12.5%
2nd-largest ancestryNorwegian 11.0%Irish 12.8%Mexican 11.3%
3rd-largest ancestryIrish 10.1%English 10.2%English 9.5%
Religion
Catholic13.9%County context14.7%18.6%
Evangelical Protestant16.9%County context10.9%16.5%
Unaffiliated or unclaimed35.6%County context55.2%51.5%
Mainline Protestant30.6%County context15.8%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 origins and ancestries reported within it.
Reported ancestry · ACS B04006
German
42.9%
Norwegian
11.0%
Irish
10.1%
English
7.3%
American
5.9%
Danish
4.9%
Dutch
4.4%
Swedish
4.4%
Specific origin · ACS B03001
Mexican
2.8%
Honduran
1.6%
The ACS does not publish subgroup detail for people reporting two or more races.
American Indian, Alaska Native, Native Hawaiian, Pacific Islander, and other single-race responses combined.
Below 1% of the population here; subgroup estimates are within the survey's margin of error.
Below 1% of the population here; subgroup estimates are within the survey's margin of error.
Source · American Community Survey 5-year estimates, 2024 release. Race shares: B02001 · B03003. Subgroup detail: B03001 (Hispanic or Latino specific origin), B02015 (Asian groups), B02020 · B02016 (American Indian/Alaska Native tribes and Pacific Islander groups), B04006 (reported ancestry). Hispanic/Latino is an ethnicity that overlaps the race categories, so group shares can total more than 100%. All subgroup rows are shares of total population; ancestry is self-reported and multiple-response, so rows do not sum to the parent group's share.
2024 ACS
Language at home
Population aged 5 and older
96.8%
speak English only
Spanish2.3%
German or other West Germanic0.3%
Other Asian & Pacific Island0.3%
Other Indo-European0.1%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Mainline Protestant
30.6%
Evangelical Protestant
16.9%
Catholic
13.9%
Latter-day Saints
2.0%
Other Christian
0.9%
Other faiths
0.1%
Unaffiliated or not counted35.6%
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.

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

Across the recorded series it reached a Republican high of 36.8 points in 2024. Between 2020 and 2024 the city moved 5.5 points toward the Republican candidate; the 2024 margin was 36.8 points.

A population of 11,400, a 92% non-Hispanic-white share, and a median household income of $59,667 describe the city.

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.
Spencer, Iowa. Akashic. https://akashic.app/city/1974280/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Spencer, Iowa vote in 2024?
In 2024, Spencer, Iowa voted Republican by 36.8 points (R+36.8), carried by the Republican candidate. Out of 5,559 votes cast, 1,711 went Democratic and 3,754 went Republican.
What is Spencer, Iowa's political typology?
Akashic places Spencer, 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 5 elections in the dataset, the city has voted Democratic 0 times, Republican 5 times, and other 0 times.
How many people live in Spencer, Iowa?
Spencer, Iowa has a population of 11,400 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Spencer, Iowa?
Median household income in Spencer, Iowa is $59,667 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Spencer, Iowa?
Akashic tracks 5 presidential elections in Spencer, Iowa from 2008 to 2024. Of those, 0 went Democratic and 5 went Republican. The city's typology — "" — captures where that record, its demographics, and its recent swing place it among American communities.