akashic
1876–2024
Chicago-Naperville-Elgin, IL-IN·Illinois

Chicago-Naperville-Elgin, IL-IN has voted Democratic in nine straight presidential elections — D+25 in 2024.

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

1876 — 2024·38 elections
IL
LatestD+25in 2024
TypologyNew Americancluster typology
Population9,371,5952024 ACS

Chicago-Naperville-Elgin, IL-IN, Illinois: New American metro. In 2024, voted D+25%. Republican peak: R+51 in 1920.

Key facts

2024 presidential margin
D+25MIT Election Lab
Political typology
New AmericanAkashic typology
Population
9,371,5952024 5-year
Median household income
$91,9002024 5-year
White (non-Hispanic)
52.9%2024 5-year
Black
16.0%2024 5-year
Hispanic / Latino
24.1%2024 5-year
Peak Democratic margin
D+36 in 2008MIT Election Lab
Peak Republican margin
R+51 in 1920MIT Election Lab
2024 presidential election
Chicago-Naperville-Elgin, IL-IN
HarrisD+25
—
2024 presidential margin by county for Chicago-Naperville-Elgin, IL-IN, ILA map of the constituent counties of Chicago-Naperville-Elgin, IL-IN, IL, each outlined and filled by its 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic).Grundy County, IL · R+30Newton County, IN · R+57Jasper County, IN · R+54Kane County, IL · D+9Lake County, IL · D+21Porter County, IN · R+10Kendall County, IL · D+2DeKalb County, IL · D+2DuPage County, IL · D+13McHenry County, IL · R+5Will County, IL · D+2Cook County, IL · D+42Lake County, IN · D+6
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic61.2%2,458,874
Donald TrumpRepublican36.5%1,468,637
OtherAll other candidates2.3%90,849
D+60
R+60
13 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: +24.6% in 2024.flipped D · 1992+24.6%DR18762024
Presidential margin over time
YearMargin (D minus R)
1876No data
1880No data
1884No data
1888No data
1892+7.4%
1896−20.8%
1900−9.5%
1904−35.3%
1908−22.1%
1912+11.2%
1916−11.0%
1920−51.1%
1924−44.0%
1928−10.5%
1932+10.4%
1936+23.4%
1940+6.8%
1944+11.2%
1948+4.8%
1952−5.1%
1956−18.3%
1960+7.2%
1964+20.7%
1968+1.8%
1972−15.3%
1976+0.1%
1980−0.5%
1984−8.8%
1988−0.2%
1992+16.9%
1996+24.1%
2000+20.9%
2004+20.9%
2008+35.9%
2012+29.4%
2016+33.5%
2020+32.4%
2024+24.6%
DemocraticRepublican
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
D
+24.6%
2,458,8741,468,6374,018,360
D
+32.4%
2,840,8221,430,6384,359,043
D
+33.5%
2,536,6331,201,7843,983,323
D
+29.4%
2,364,2741,277,6613,701,534
D
+35.9%
2,622,1511,224,2143,888,744
D
+20.9%
2,185,5521,425,1723,635,742
D
+20.9%
1,912,3531,236,0473,236,328
D
+24.1%
1,680,475982,9202,896,618
D
+16.9%
1,728,6531,149,0853,437,486
R
−0.2%
1,544,7661,551,7313,120,515
R
−8.8%
1,489,1711,777,9543,285,755
R
−0.5%
1,461,6251,479,1173,225,886
D
+0.1%
1,576,6121,571,9533,209,323
R
−15.3%
1,360,0841,854,0203,230,894
D
+1.8%
1,467,3721,411,1103,166,805
D
+20.7%
1,948,0031,279,4443,228,502
D
+7.2%
1,715,9581,483,5153,208,010
R
−18.3%
1,188,8041,723,1992,919,138
R
−5.1%
1,398,1301,549,4632,955,984
D
+4.8%
1,403,1601,273,5332,697,711
D
+11.2%
1,471,1111,173,5952,652,701
D
+6.8%
1,369,0811,193,6982,572,983
D
+23.4%
1,456,991892,4522,415,668
D
+10.4%
1,089,483877,9852,032,277
R
−10.5%
828,7451,024,7151,867,631
R
−44.0%
258,177849,7041,343,795
R
−51.1%
228,458779,0691,078,242
R
−11.0%
435,450548,4211,024,729
O
+11.2%
158,41498,792533,037
R
−22.1%
182,748296,815516,819
R
−35.3%
123,123293,665482,984
R
−9.5%
216,972263,797494,443
R
−20.8%
182,134279,679469,156
D
+7.4%
174,674149,905334,528
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Demographics

2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
12.7%
Irish
10.1%
Polish
7.8%
Italian
6.0%
English
4.9%
American
2.5%
French
1.1%
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: 38.6 in this county, 39.1 nationally
Male
Age
Female
0.7%
85+
1.2%
2.0%
75–84
2.7%
4.5%
65–74
5.1%
6.2%
55–64
6.4%
6.3%
45–54
6.4%
6.9%
35–44
6.8%
7.1%
25–34
7.1%
4.5%
18–24
4.4%
8.5%
5–17
8.1%
2.8%
<5
2.7%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$91,900
Chicago-Naperville-Elgin, IL-IN ranks near the middle of US counties.
Chicago-Naperville-Elgin, IL-IN$91,900
Illinois$83,390
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
11.2%
Child poverty is below the national average.
Children under 1814.9%
Working age (18–64)10.1%
Seniors (65+)11.7%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
69.4%
speak English only
Spanish18.1%
Other Indo-European7.2%
Asian & Pacific Islander3.7%
Other languages1.5%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
29.4%
Other Christian
6.6%
Non-Christian
6.4%
Mainline Protestant
3.9%
Baptist
3.3%
Pentecostal & Holiness
1.7%
Methodist
1.3%
Source · 2020 US Religion Census. Remaining 47.4% of residents not counted as adherents by any reporting body.

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.

Across the recorded series it reached a Democratic high of thirty-six points in 2008 and a Republican high of fifty-one points in 1920. Between 2020 and 2024 the metro moved eight points toward the Republican candidate; the 2024 margin was twenty-five points.

A population of 9,371,595, a 53% non-Hispanic-white share, and a median household income of $91,900 describe the metro.

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.
Chicago-Naperville-Elgin, IL-IN, Illinois. Akashic. https://akashic.app/cbsa/16980/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Chicago-Naperville-Elgin, IL-IN, Illinois vote in 2024?
In 2024, Chicago-Naperville-Elgin, IL-IN, Illinois voted Democratic by 24.6 points (D+25), carried by the Democratic candidate. Out of 4,018,360 votes cast, 2,458,874 went Democratic and 1,468,637 went Republican.
What is Chicago-Naperville-Elgin, IL-IN, Illinois's political typology?
Akashic places Chicago-Naperville-Elgin, IL-IN, Illinois in the "New American" 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 metro has voted Democratic 19 times, Republican 14 times, and other 1 times.
When did Chicago-Naperville-Elgin, IL-IN, Illinois last vote Republican?
The most recent presidential election in which Chicago-Naperville-Elgin, IL-IN, Illinois voted Republican was 1988.
How many people live in Chicago-Naperville-Elgin, IL-IN, Illinois?
Chicago-Naperville-Elgin, IL-IN, Illinois has a population of 9,371,595 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Chicago-Naperville-Elgin, IL-IN, Illinois?
Median household income in Chicago-Naperville-Elgin, IL-IN, Illinois is $91,900 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Chicago-Naperville-Elgin, IL-IN, Illinois?
Akashic tracks 38 presidential elections in Chicago-Naperville-Elgin, IL-IN, Illinois from 1876 to 2024. Of those, 19 went Democratic and 14 went Republican. The metro's typology — "New American" — captures where that record, its demographics, and its recent swing place it among American communities.