How did Chicago-Naperville-Elgin, IL-IN vote in the 2024 presidential election?

Chicago-Naperville-Elgin, IL-IN voted Democratic in 2024 with a margin of D+24.6. Kamala D Harris received 2,458,874 votes and Donald Trump received 1,468,637 out of 4,017,789 total votes cast, a 7.7-point shift toward Republicans from 2020.

What is Chicago-Naperville-Elgin, IL-IN's political history?

Chicago-Naperville-Elgin, IL-IN has 40 presidential elections on record, spanning 1868 to 2024. It has voted Democratic in every presidential election since 1992. The largest single-election swing was 64.2 points in 1876.

What are the demographics of Chicago-Naperville-Elgin, IL-IN?

Chicago-Naperville-Elgin, IL-IN has a population of 36,979,910 according to the 2020 Census. The racial composition is 54.4% non-Hispanic white, 20.5% Hispanic, 17.4% Black. About 35% of residents hold a bachelor's degree or higher. Median household income is $67,542.

Live · Metropolitan area

Chicago-Naperville-Elgin, IL-IN

Q: Which places are most similar to Chicago-Naperville-Elgin, IL-IN?

Based on demographic and electoral similarity analysis, the three most similar metro areas to Chicago-Naperville-Elgin, IL-IN are Washington-Arlington-Alexandria, DC-VA-MD-WV, New York-Newark-Jersey City, NY-NJ, Providence-Warwick, RI-MA. Similarity is computed using a vector embedding of demographic, economic, and electoral characteristics.

Third-largest U.S. metro, anchored by a city that hasn't backed a Republican presidential candidate since 1972

Cook County's overwhelming Democratic margins routinely offset competitive results in the Indiana counties and outer Illinois suburbs that share this 14-county metro, making aggregate vote totals a misleading read on the region's internal diversity.

Presidential margin · 2024

Data unavailable for this race.

Race data unavailable

Geography

Race data unavailable

No current race for this office.

2024FIPS 16980

Population37.0M

Median ageU.S. 38.9y

36.1y▼ 2.8

Bachelor's+U.S. 35%

35.0%— 0.0

White54.4%
Hispanic20.5%
Black17.4%
Other9.1%
Asian5.8%
Two or more4.8%

Trajectory · 2008–2024

Chicago-Naperville-Elgin, IL-INBaseline

Cycle2024

Open in Cartographer

Constituent Counties

Open in Cartographer

Similarity Explorer

Similar metro areas

Reads like Washington-Arlington-Alexandria, DC-VA-MD-WV, New York-Newark-Jersey City, NY-NJ, and Providence-Warwick, RI-MA.

8 visible matches

Washington-Arlington-Alexandria, DC-VA-MD-WV

Educated rural competitive 2

D+41.3

Similarity score98%

New York-Newark-Jersey City, NY-NJ

Diverse rural democratic

D+14.7

Similarity score97%

Providence-Warwick, RI-MA

Educated rural competitive 2

D+9.3

Similarity score96%

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD

Educated rural competitive 2

D+25.4

Similarity score96%

Boston-Cambridge-Newton, MA-NH

Educated rural competitive 2

D+28.1

Similarity score96%

Portland-Vancouver-Hillsboro, OR-WA

Educated rural competitive 2

D+29.3

Similarity score94%

Charlotte-Concord-Gastonia, NC-SC

Educated rural competitive 2

R+1.3

Similarity score93%

Minneapolis-St. Paul-Bloomington, MN-WI

Educated rural competitive 2

D+16.8

Similarity score93%

Constituent Geography

Counties in Chicago-Naperville-Elgin, IL-IN

2024 presidential results across the counties that make up this geography.

Sort:

County	Pop.	Margin	Dem	Rep	Total	Share
Cook	5.4M	D+41.5	1,447,821	583,852	2,079,239	12.9%
Cook	5.3M	D+41.5	1,447,821	583,852	2,079,239	12.9%
Cook	5.2M	D+41.5	1,447,821	583,852	2,079,239	12.9%
Cook	5.2M	D+41.5	1,447,821	583,852	2,079,239	12.9%
DuPage	931K	D+13.1	251,164	191,243	456,882	2.8%
DuPage	930K	D+13.1	251,164	191,243	456,882	2.8%
DuPage	926K	D+13.1	251,164	191,243	456,882	2.8%
DuPage	904K	D+13.1	251,164	191,243	456,882	2.8%
Lake	714K	D+20.7	184,642	120,402	310,913	1.9%
Lake	703K	D+20.7	184,642	120,402	310,913	1.9%
Lake	703K	D+20.7	184,642	120,402	310,913	1.9%
Will	701K	D+1.6	162,874	157,672	327,604	2.0%
Will	685K	D+1.6	162,874	157,672	327,604	2.0%
Will	664K	D+1.6	162,874	157,672	327,604	2.0%
Lake	644K	D+20.7	184,642	120,402	310,913	1.9%
Kane	527K	D+9.3	120,077	99,260	223,534	1.4%
Kane	517K	D+9.3	120,077	99,260	223,534	1.4%
Will	502K	D+1.6	162,874	157,672	327,604	2.0%
Lake	500K	D+5.6	109,086	97,270	209,551	1.3%
Kane	494K	D+9.3	120,077	99,260	223,534	1.4%
Lake	491K	D+5.6	109,086	97,270	209,551	1.3%
Lake	490K	D+5.6	109,086	97,270	209,551	1.3%
Lake	485K	D+5.6	109,086	97,270	209,551	1.3%
Kane	404K	D+9.3	120,077	99,260	223,534	1.4%
McHenry	313K	R+5.3	75,370	83,933	162,283	1.0%
McHenry	313K	R+5.3	75,370	83,933	162,283	1.0%
McHenry	307K	R+5.3	75,370	83,933	162,283	1.0%
McHenry	260K	R+5.3	75,370	83,933	162,283	1.0%
Porter	175K	R+10.5	37,213	46,109	84,969	0.5%
Porter	167K	R+10.5	37,213	46,109	84,969	0.5%
Porter	160K	R+10.5	37,213	46,109	84,969	0.5%
Porter	147K	R+10.5	37,213	46,109	84,969	0.5%
Kendall	138K	D+1.5	32,977	31,970	66,397	0.4%
Kendall	121K	D+1.5	32,977	31,970	66,397	0.4%
DeKalb	104K	D+2.0	23,648	22,716	47,401	0.3%
DeKalb	104K	D+2.0	23,648	22,716	47,401	0.3%
DeKalb	101K	D+2.0	23,648	22,716	47,401	0.3%
Kendall	94K	D+1.5	32,977	31,970	66,397	0.4%
DeKalb	89K	D+2.0	23,648	22,716	47,401	0.3%
Kendall	55K	D+1.5	32,977	31,970	66,397	0.4%
Grundy	53K	R+29.5	9,143	16,997	26,589	0.2%
Grundy	50K	R+29.5	9,143	16,997	26,589	0.2%
Grundy	47K	R+29.5	9,143	16,997	26,589	0.2%
Grundy	38K	R+29.5	9,143	16,997	26,589	0.2%
Jasper	33K	R+54.3	3,489	12,082	15,826	0.1%
Jasper	33K	R+54.3	3,489	12,082	15,826	0.1%
Jasper	32K	R+54.3	3,489	12,082	15,826	0.1%
Jasper	30K	R+54.3	3,489	12,082	15,826	0.1%
Newton	15K	R+57.0	1,370	5,131	6,601	0.0%
Newton	14K	R+57.0	1,370	5,131	6,601	0.0%
Newton	14K	R+57.0	1,370	5,131	6,601	0.0%
Newton	14K	R+57.0	1,370	5,131	6,601	0.0%

52 countiesTotal votes: 16,071,156

Historian Query

Ask the Historian

Explore Chicago-Naperville-Elgin, IL-IN's political evolution with the Historian

“How has the Chicago-Naperville-Elgin, IL-IN metro area voted in presidential elections?”

Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.

Chicago-Naperville-Elgin, IL-INCensus ACS 2024Ancestry detail available

Census race profile

Major Census race and ethnicity groups shown as a share of total population.

Expand rows for ancestry detail

White (Non-Hispanic) 54.4%Hispanic 20.5%Black 17.4%Asian 5.8%Multiracial 1.5%Native American 0.4%

Group	Local	National
▶White (Non-Hispanic)(13)	54.4%	57.4%
▶Hispanic / Latino(20)	20.5%	19.3%
▶Black / African American(15)	17.4%	12.2%
▶Asian(6)	5.8%	6.0%
Multiracial / Other	1.5%	4.0%
▶Middle Eastern / North African(11)	1.2%	0.9%
▶Native American / Alaska Native(2)	0.4%	0.9%

Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Click rows to expand ancestry detail. Ancestry from ACS B04006, B03001, B02020, B02016. Totals may differ from race — individuals can report multiple ancestries.

Black / African American (estimated remainder) is derived as Black population share minus reported Sub-Saharan African and West Indian ancestry. It is shown as an estimated ancestry detail, not a standalone Census ancestry category.

MENA estimated from ancestry reporting — Census does not have a separate MENA race category. Not shown in bar (overlaps with other race groups).

Religious Adherents

Population that are religious adherents:

53.1%(5.0M people)

U.S. Religion Census 2020

Browse all religions

Catholic-Evangelical edge: +34.4pp (vs national 4.5pp). A strongly Catholic-leaning religious profile, which nationally correlates with Democratic-leaning urban and suburban communities.

Ecological pattern — how to read this

Reflects patterns in counties where this religious tradition concentrates — not a claim about individual voters.

Values are derived by joining Religion Census 2020 (U.S. Religion Data Archive) with certified election results at the county level. That means we know what counties with more or fewer of this group did — not how any individual voted.

This is known as ecological inference. It is a valid way to surface geographic correlation but must not be read as a personal-vote claim about anyone in the group.

Tradition	% Pop	% Adherents	US Pop	US Adherents
Catholic	29.0%	54.5%	—	—
Evangelical Protestant	8.3%	15.7%	—	—
Other	7.7%	14.4%	—	—
Mainline Protestant	3.7%	7.0%	—	—
Black Protestant	3.7%	6.9%	—	—
Orthodox Christian	0.7%	1.4%	—	—
LDS (Mormon)	0.3%	0.6%	—	—
Non-religiousPopulation	46.9%	—	—	—

Click the chevron to expand denominations. Tradition and denomination rows label both share of total population and share of all religious adherents. Non-religious is shown as a share of total population only.

Explore Catholic adherence nationally

Who lives in the Chicago-Naperville-Elgin, IL-IN metro area? 36,979,910 residents across 52 counties.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.

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Chicago-Naperville-Elgin, IL-IN vs National37.0M residents

Population & electorate

Scale, voting-age share, and this geography's footprint inside the national electorate.

Total population

Local vs state vs U.S.

37.0M

local

37.0MNational 334.9M

Share of U.S. population

Local vs state vs U.S.

11.04%

local

11.04%National 100%

Voting-age population

Local vs state vs U.S.

38.2%

local

38.2%National 75.7%

Economic profile

Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.

Median household income

Local vs state vs U.S.

$67,542

local

$67,542National $83,960

Poverty rate

Local vs state vs U.S.

11.8%

local

11.8%National 12.5%

College degree

Local vs state vs U.S.

35.0%

local

35.0%National 35.6%

Homeownership

Local vs state vs U.S.

65.7%

local

65.7%National 65.2%

Community profile

Age structure, language use, and nativity signals that explain how this geography differs from state and nation.

Median age

Local vs state vs U.S.

36.1 yrs

local

36.1 yrsNational 39.1 yrs

Age 18–29

Local vs state vs U.S.

12.5%

local

12.5%National 15.7%

Age 65+

Local vs state vs U.S.

10.1%

local

10.1%National 17.0%

Foreign born

Local vs state vs U.S.

17.5%

local

17.5%National 14.1%

Non-English at home

Local vs state vs U.S.

28.2%

local

28.2%National 22.2%

English only

Local vs state vs U.S.

71.8%

local

71.8%National 77.8%

Voter Turnout

Turnout in Chicago-Naperville-Elgin, IL-IN

Turnout % = votes cast ÷ citizen voting-age population (CVAP). Source: CVAP Special Tab 2020-2024.

2024 Turnout

61.3%

vs Previous

-5.2pp

Eligible Non-Voters

2.5M · 38.7%

Citizen VAP

6,550,985

History

1988–2024

Ticket-Splitting

Do voters in Chicago-Naperville-Elgin, IL-IN split their tickets?

Divergence between offices in the same election reveals persuadable voters.

ConsistencyHeavy splitting (0/100)

2024 Office Comparisons

Offices	Margin A	Margin B	Split
President vs Senate	D+24.6	R+1.1	25.7pp
President vs Governor	D+24.6	D+1.3	23.3pp
Senate vs Governor	R+1.1	D+1.3	2.4pp

Average divergence across office pairs: 17.7pp

Containing Geography

Located In

Chicago-Naperville-Elgin, IL-IN sits inside these higher-level geographies.

Illinois(State)Indiana(State)

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