akashic
1876–2024
Joliet·Illinois

Joliet moved 9.9 points toward the Republican candidate between 2020 and 2024.

20082024·5 elections
IL
Joliet
HarrisD+12.1
2024 presidential margin by county for Joliet, ILA map of the constituent counties of Joliet, IL, 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.Will County, IL · D+1.6Kendall County, IL · D+1.5
How it voted
Share of the 2024 vote
Kamala HarrisDemocratic55.0%32,100
Donald TrumpRepublican42.8%25,022
OtherAll other candidates2.2%1,283
D+60
R+60
2 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.
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: +12.1% in 2024.+12.1%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008+30.8%
2012+26.5%
2016+22.1%
2020+22.0%
2024+12.1%
DemocraticRepublican
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
D
55.0%Harris32,100
42.8%Trump25,022
2.2%
+12.1%
58,405
D
60.0%Biden37,299
38.0%Trump23,639
1.9%incl. Jorgensen
+22.0%
62,141
D
57.9%Clinton32,673
35.8%Trump20,205
6.3%incl. Johnson
+22.1%
56,434
D
63.3%Obama31,946
36.7%Romney18,556
0.0%
+26.5%
50,502
D
64.7%Obama35,379
33.9%McCain18,522
1.4%
+30.8%
54,646

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.
IndicatorJolietCityIllinoisStateUnited StatesNation
Race & Ethnicity
White49.9%61.0%61.0%
Black16.3%13.6%12.2%
Asian2.5%6.0%6.0%
Two or more races16.0%10.9%12.6%
Other race15.3%8.6%8.2%
Hispanic or Latino34.2%18.8%19.3%
Income & Age
Median household income$92,201$83,390$84,427
Poverty rate11.1%11.8%12.5%
Median age35.839.139.1
Age 18–249.0%9.1%9.2%
Age 65 and older14.6%16.9%17.2%
Education & Language
Bachelor's degree or higher (25+)37.5%37.9%35.6%
Speaks a non-English language at home22.4%24.1%22.3%
Spanish13.2%14.0%13.6%
Other Indo-European3.0%2.6%2.0%
Russian, Polish, or other Slavic2.0%2.5%0.7%
Other Asian & Pacific Island1.1%1.0%1.1%
Ancestry
Largest ancestryGerman 16.7%German 16.1%German 12.5%
2nd-largest ancestryMexican 16.5%Mexican 14.4%Mexican 11.3%
3rd-largest ancestryIrish 12.8%Irish 10.6%English 9.5%
Religion
Catholic24.4%County context24.2%18.6%
Evangelical Protestant10.1%County context11.7%16.5%
Unaffiliated or unclaimed57.6%County context49.2%51.5%

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
16.7%
Irish
12.8%
Polish
10.2%
Italian
8.5%
English
5.5%
American
2.5%
Swedish
1.6%
Dutch
1.2%
Specific origin · ACS B03001
Mexican
16.5%
Puerto Rican
1.3%
Spaniard
0.3%
Spanish
0.2%
Cuban
0.2%
Colombian
0.2%
Guatemalan
0.2%
Reported ancestry · ACS B04006
African American identity is recorded by the ACS race question; the ancestry item enumerates specific African and Caribbean ancestries only.
African
2.0%
Nigerian
0.4%
Ghanaian
0.2%
The ACS does not publish subgroup detail for people reporting two or more races.
Tribal grouping · detailed group · ACS B02020 · B02016
American Indian, Alaska Native, Native Hawaiian, Pacific Islander, and other single-race responses combined.
Aztec
0.2%
Detailed group · ACS B02015
Asian Indian
2.8%
Filipino
1.2%
Chinese
0.7%
Pakistani
0.5%
Korean
0.2%
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
77.6%
speak English only
Spanish13.2%
Other Indo-European3.0%
Russian, Polish, or other Slavic2.0%
Other Asian & Pacific Island1.1%
Tagalog (incl. Filipino)0.7%
Other languages0.6%
Chinese (incl. Mandarin & Cantonese)0.6%
Arabic0.5%
French (incl. Cajun & Haitian)0.2%
German or other West Germanic0.2%
Korean0.1%
Vietnamese0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Catholic
24.4%
Evangelical Protestant
10.1%
Mainline Protestant
2.9%
Muslim
2.6%
Black Protestant
0.8%
Other Christian
0.7%
Latter-day Saints
0.4%
Orthodox Christian
0.3%
Hindu
0.2%
Other faiths
0.1%
Unaffiliated or not counted57.6%
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.

Joliet sits in the Upper Midwest. In 2024 it voted Democratic.

Across the recorded series it reached a Democratic high of 30.8 points in 2008. Between 2020 and 2024 the city moved 9.9 points toward the Republican candidate; the 2024 margin was 12.1 points.

A population of 150,445, a 50% non-Hispanic-white share, and a median household income of $92,201 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.
Joliet, Illinois. Akashic. https://akashic.app/city/1738570/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Joliet, Illinois vote in 2024?
In 2024, Joliet, Illinois voted Democratic by 12.1 points (D+12.1), carried by the Democratic candidate. Out of 58,405 votes cast, 32,100 went Democratic and 25,022 went Republican.
What is Joliet, Illinois's political typology?
Akashic places Joliet, Illinois 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 5 times, Republican 0 times, and other 0 times.
How many people live in Joliet, Illinois?
Joliet, Illinois has a population of 150,445 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Joliet, Illinois?
Median household income in Joliet, Illinois is $92,201 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Joliet, Illinois?
Akashic tracks 5 presidential elections in Joliet, Illinois from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican. The city's typology — "" — captures where that record, its demographics, and its recent swing place it among American communities.