Akashic
1892–2024
Akashic
Chicago-Naperville-Elgin, IL-IN
presidential margin
2008D+35.92012D+29.42016D+33.52020D+32.42024D+24.6
full record · 1892 → 2024
D+24.6
2024
median income$91,900U.S. $80,734 · IL $83,390
median age38.6U.S. 39.1
poverty rate11.2%U.S. 12.5%
bachelor’s+ (25+)41.6%U.S. 35.6%
non-english30.6%U.S. 22.3%
race · ethnicity · ancestry
German12.7%
Irish10.1%
Polish7.8%
Mexican18.4%
Puerto Rican2.2%
Ecuadorian0.4%
African American†14.3%
African0.5%
Nigerian0.3%
Asian Indian2.6%
Filipino1.3%
Chinese1.2%
religion
other traditions
Muslim4.8%
Mainline3.8%
Black Protestant3.6%
Other Christian0.8%
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents, unaffiliated is the unclaimed remainder.

Chicago-Naperville-Elgin, IL-IN, Illinois

Akashic
Chicago-Naperville-Elgin, IL-INHarrisD+24.6
—
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), seated within the faint outlines of the surrounding states.Cook County, IL · D+41.6DuPage County, IL · D+13.1Grundy County, IL · R+29.5McHenry County, IL · R+5.3Will County, IL · D+1.6DeKalb County, IL · D+2.0Kane County, IL · D+9.3Kendall County, IL · D+1.5Lake County, IL · D+20.7Jasper County, IN · R+54.3Lake County, IN · D+5.6Newton County, IN · R+57.0Porter County, IN · R+10.5
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic61.2%2,458,874
Donald TrumpRepublican36.6%1,468,637
Robert F. Kennedy Jr.Independent2.2%90,278
D+60
R+60
13 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.
County-level results (13 counties) — table
2024 presidential result by county for Chicago-Naperville-Elgin, IL-IN, IL — winner and D-vs-R margin.
CountyWinnerMargin
Cook County, ILDemocraticD+41.6
DeKalb County, ILDemocraticD+2.0
DuPage County, ILDemocraticD+13.1
Grundy County, ILRepublicanR+29.5
Jasper County, INRepublicanR+54.3
Kane County, ILDemocraticD+9.3
Kendall County, ILDemocraticD+1.5
Lake County, ILDemocraticD+20.7
Lake County, INDemocraticD+5.6
McHenry County, ILRepublicanR+5.3
Newton County, INRepublicanR+57.0
Porter County, INRepublicanR+10.5
Will County, ILDemocraticD+1.6
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
D
61.2%Harris2,458,874
36.6%Trump1,468,637
2.2%Kennedy90,278
+24.6%
4,017,789
D
65.2%Biden2,840,822
32.8%Trump1,430,638
2.0%Jorgensen87,583
+32.4%
4,359,043
D
63.7%Clinton2,536,633
30.2%Trump1,201,784
6.1%Johnson244,906
+33.5%
3,983,323
D
63.9%Obama2,364,274
34.5%Romney1,277,661
1.6%Johnson59,599
+29.4%
3,701,534
D
67.4%Obama2,622,151
31.5%McCain1,224,214
1.1%Nader42,379
+35.9%
3,888,744
D
60.1%Kerry2,185,552
39.2%Bush1,425,172
0.7%Badnarik25,018
+20.9%
3,635,742
D
59.1%Gore1,912,353
38.2%Bush1,236,047
2.7%Nader87,928
+20.9%
3,236,328
D
58.0%Clinton1,680,475
33.9%Dole982,920
8.1%Perot233,223
+24.1%
2,896,618
D
50.3%Clinton1,728,653
33.4%Bush1,149,085
16.3%Perot559,748
+16.9%
3,437,486
R
49.5%Dukakis1,544,766
49.7%Bush1,551,731
0.8%Paul24,018
−0.2%
3,120,515
R
45.3%Mondale1,489,171
54.1%Reagan1,777,954
0.6%Bergland18,630
−8.8%
3,285,755
R
45.3%Carter1,461,625
45.9%Reagan1,479,117
8.8%Anderson285,144
−0.5%
3,225,886
D
49.1%Carter1,576,612
49.0%Ford1,571,953
1.9%McCarthy60,758
+0.1%
3,209,323
R
42.1%McGovern1,360,084
57.4%Nixon1,854,020
0.5%Schmitz16,790
−15.3%
3,230,894
D
46.3%Humphrey1,467,372
44.6%Nixon1,411,110
9.1%Wallace288,323
+1.8%
3,166,805
D
60.3%Johnson1,948,003
39.6%Goldwater1,279,444
0.0%Hass1,055
+20.7%
3,228,502
D
53.5%Kennedy1,715,958
46.2%Nixon1,483,515
0.3%Byrd8,537
+7.2%
3,208,010
R
40.7%Stevenson1,188,804
59.0%Eisenhower1,723,199
0.2%Andrews7,135
−18.3%
2,919,138
R
47.3%Stevenson1,398,130
52.4%Eisenhower1,549,463
0.3%Hallinan8,391
−5.1%
2,955,984
D
52.0%Truman1,403,160
47.2%Dewey1,273,533
0.8%Thurmond21,018
+4.8%
2,697,711
D
55.5%Roosevelt1,471,111
44.2%Dewey1,173,595
0.3%Thomas7,995
+11.2%
2,652,701
D
53.2%Roosevelt1,369,081
46.4%Willkie1,193,698
0.4%Thomas10,204
+6.8%
2,572,983
D
60.3%Roosevelt1,456,991
36.9%Landon892,452
2.7%Lemke66,225
+23.4%
2,415,668
D
53.6%Roosevelt1,089,483
43.2%Hoover877,985
3.2%Thomas64,809
+10.4%
2,032,277
R
44.4%Smith828,745
54.9%Hoover1,024,715
0.8%Thomas14,171
−10.5%
1,867,631
R
19.2%Davis258,177
63.2%Coolidge849,704
17.6%La Follette235,914
−44.0%
1,343,795
R
21.2%Cox228,458
72.3%Harding779,069
6.6%Debs70,715
−51.1%
1,078,242
R
42.5%Wilson435,450
53.5%Hughes548,421
4.0%Benson40,858
−11.0%
1,024,729
O
29.7%Wilson158,414
18.5%Taft98,792
51.7%Roosevelt275,831
Roosevelt +22.0
533,037
R
35.4%Bryan182,748
57.4%Taft296,815
7.2%Debs37,256
−22.1%
516,819
R
25.5%Parker123,123
60.8%Roosevelt293,665
13.7%Debs66,196
−35.3%
482,984
R
43.9%Bryan216,972
53.4%McKinley263,797
2.8%Woolley13,674
−9.5%
494,443
R
38.8%Bryan182,134
59.6%McKinley279,679
1.6%Palmer7,343
−20.8%
469,156
D
52.2%Cleveland174,674
44.8%Harrison149,905
3.0%Weaver9,949
+7.4%
334,528
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 1892 to 2024. Most recent: +24.6% in 2024.flipped D · 1992+24.6%DR18922024
Presidential margin over time
YearMargin (D minus R)
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
voter registration
Registered voters
Total registered voters, over time
Voter registration in Chicago-Naperville-Elgin, IL-INTotal registered voters, 2016–2024. Latest 4,791,348 in 2024.1.2M2.5M3.7M4.9M4.8M20162024
Registered voters
Voter registration in Chicago-Naperville-Elgin, IL-IN
YearTotal registered
20164,447,201
20184,572,522
20204,647,922
20224,920,798
20244,791,348
Source: U.S. Election Assistance Commission (EAVS)

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 35.9 points in 2008 and a Republican high of 51.1 points in 1920. Between 2020 and 2024 the metro moved 7.7 points toward the Republican candidate; the 2024 margin was 24.6 points.

A population of 9,371,595, a 49% non-Hispanic-white share, and a median household income of $91,900 describe the metro. The metro's voting pattern over the last decade is most similar to that of Philadelphia-Camden-Wilmington, PA-NJ-DE-MD and New York-Newark-Jersey City, NY-NJ.

Political twins — metros

The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
94.4twin score
2016–2024 trajectorypopulation scale≠ Italian ancestry
New York-Newark-Jersey City, NY-NJ
94.0twin score
population scale2004–2020 trajectory≠ % Asian
Detroit-Warren-Dearborn, MI
93.0twin score
population scale2000–2008 trajectory≠ % Latino

Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.

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.
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Places within Chicago-Naperville-Elgin, IL-IN

counties13
Cook CountyDeKalb CountyDuPage CountyGrundy CountyJasper CountyKane CountyKendall CountyLake CountyLake CountyMcHenry CountyNewton CountyPorter CountyWill County

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+24.6), carried by the Democratic candidate. Out of 4,017,789 votes cast, 2,458,874 went Democratic and 1,468,637 went Republican.
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 34 presidential elections in Chicago-Naperville-Elgin, IL-IN, Illinois from 1892 to 2024. Of those, 19 went Democratic and 14 went Republican.