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 9,371,595 according to the 2020 Census. The racial composition is 49.3% non-Hispanic white, 24.1% Hispanic, 16.0% Black. About 42% of residents hold a bachelor's degree or higher. Median household income is $91,288.

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.

Chicago-Naperville-Elgin, IL-IN

Latest: 2024↓ R+7.7 vs 2020

Safe Democratic — shifted 7.7pp toward Republicans in 2024 — 9.4M residents — 13 counties

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POPULATION
9.4M
COUNTIES
13
PRES MARGIN
D+24.6
2024
TURNOUT
56.1%
MEDIAN INCOME
$91K

Place Story

What defines Chicago-Naperville-Elgin, IL-IN

Methodology

Reliably Democratic since 1992
- Safe D
- 9 straight D wins
Mobilization target, not persuasion target.
Biggest swing: D+64.2 in 1876
- 1872 → 1876
Volatile behavior — treat historical margins with caution.
Catholic edge: 39pp over Evangelicals
- 55% Catholic / 16% Evangelical
Correlates nationally with Democratic-leaning behavior.
Ticket-splitting: Senate ran 103.7pp behind Governor
- Divergence 103.7pp in 2006
Persuadable voters present — downballot races can run independent of presidential.

Constituent Counties

Open in Cartographer

Similarity Explorer

Similar metro areas

Nearest neighbors matched on the same place-page feature set used across the dossier system.

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	5.2M	D+41.5	1,447,821	583,852	2,079,239	51.8%
DuPage	930K	D+13.1	251,164	191,243	456,882	11.4%
Lake	714K	D+20.7	184,642	120,402	310,913	7.7%
Will	701K	D+1.6	162,874	157,672	327,604	8.2%
Kane	517K	D+9.3	120,077	99,260	223,534	5.6%
Lake	500K	D+5.6	109,086	97,270	209,551	5.2%
McHenry	313K	R+5.3	75,370	83,933	162,283	4.0%
Porter	175K	R+10.5	37,213	46,109	84,969	2.1%
Kendall	138K	D+1.5	32,977	31,970	66,397	1.7%
DeKalb	101K	D+2.0	23,648	22,716	47,401	1.2%
Grundy	53K	R+29.5	9,143	16,997	26,589	0.7%
Jasper	33K	R+54.3	3,489	12,082	15,826	0.4%
Newton	14K	R+57.0	1,370	5,131	6,601	0.2%

13 countiesTotal votes: 4,017,789

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) 49.3%Hispanic 24.1%Black 16.0%Asian 7.4%Multiracial 2.4%Native American 0.8%

Group	Local	National
▶White (Non-Hispanic)(13)	49.3%	57.4%
▶Hispanic / Latino(20)	24.1%	19.3%
▶Black / African American(15)	16.0%	12.2%
▶Asian(6)	7.4%	6.0%
Multiracial / Other	2.4%	4.0%
▶Middle Eastern / North African(11)	1.2%	0.9%
▶Native American / Alaska Native(2)	0.8%	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.

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? 9,371,595 residents across 13 counties.

Demographic Comparison

Demographics

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

Chicago-Naperville-Elgin, IL-IN vs National9.4M residents

42% of adults hold a bachelor's degree — 9pp above the national average. Places with similar education levels vote D+16 on average nationally.

Population & electorate

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

Total population

Local vs state vs U.S.

9.4M

local

9.4MNational 334.9M

Share of U.S. population

Local vs state vs U.S.

2.80%

local

2.80%National 100%

Voting-age population

Local vs state vs U.S.

76.4%

local

76.4%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.

$91,288

local

$91,288National $83,960

Poverty rate

Local vs state vs U.S.

11.2%

local

11.2%National 12.5%

College degree

Local vs state vs U.S.

41.6%

local

41.6%National 35.6%

Homeownership

Local vs state vs U.S.

65.5%

local

65.5%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.

38.6 yrs

local

38.6 yrsNational 39.1 yrs

Age 18–29

Local vs state vs U.S.

15.8%

local

15.8%National 15.7%

Age 65+

Local vs state vs U.S.

16.0%

local

16.0%National 17.0%

Foreign born

Local vs state vs U.S.

18.6%

local

18.6%National 14.1%

Non-English at home

Local vs state vs U.S.

30.5%

local

30.5%National 22.2%

English only

Local vs state vs U.S.

69.5%

local

69.5%National 77.8%

Voter Turnout

Turnout in Chicago-Naperville-Elgin, IL-IN

Estimated using 2020 Census voting-age population.

2024 Turnout

56.1%

vs Previous

-4.8pp

Voting-Age Pop

7,161,493

History

1988–2024

Competitiveness

How competitive is Chicago-Naperville-Elgin, IL-IN?

Safe DAvg margin: D+30.2 (last 3 elections)

2008

D+35.9

2012

D+29.4

2016

D+33.5

2020

D+32.4

2024

D+24.6

Elasticity

11.3pp

margin range

Party Flips

last 30 years

5-Elec Avg

D+31.2

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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