† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
13 counties by 2024 margin · County returns · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupChicago-Naperville-Elgin, IL-INUnited States
German12.7%12.5%
Irish10.1%9.4%
Polish7.8%2.2%
Italian6.0%4.8%
English4.9%9.5%
American2.5%5.3%
Swedish1.5%—
Russian0.7%—
Mexican18.4%11.3%
Puerto Rican2.2%1.8%
Ecuadorian0.4%—
Guatemalan0.4%0.5%
Colombian0.3%0.4%
Cuban0.3%0.7%
Venezuelan0.2%—
Honduran0.2%0.3%
African American†14.3%9.9%
African0.5%0.5%
Nigerian0.3%0.2%
Jamaican0.2%0.4%
Asian Indian2.6%1.4%
Filipino1.3%0.9%
Chinese1.2%1.3%
Korean0.5%0.4%
Pakistani0.4%—
Vietnamese0.2%0.6%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Chicago-Naperville-Elgin, IL-IN
United States
Median age
38.6
39.1
Age 18–24
8.9%
9.2%
Age 65 and older
16.2%
17.2%
Household economy
Measure
Chicago-Naperville-Elgin, IL-IN
United States
Median household income
$91,900
$84,427
Poverty rate
11.2%
12.5%
Bachelor's degree or higher (25+)
41.6%
35.6%
Languages at home
Measure
Chicago-Naperville-Elgin, IL-IN
United States
Speaks a non-English language at home
30.6%
22.3%
Spanish
18.1%
13.6%
Russian, Polish, or other Slavic
3.3%
0.7%
Other Indo-European
3.3%
2.0%
Chinese (incl. Mandarin & Cantonese)
1.1%
1.1%
Religious landscape
Measure
Chicago-Naperville-Elgin, IL-IN
United States
Catholic
28.7%
18.6%
Evangelical Protestant
8.2%
16.5%
Unclaimed / not counted
47.4%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Chicago-Naperville-Elgin, IL-IN
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (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
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
61.2%Harris2,458,874
36.6%Trump1,468,637
2.2%
D+24.6
R+7.7
D+26.1
4,017,789
D
65.2%Biden2,840,822
32.8%Trump1,430,638
2.0%
D+32.4
R+1.2
D+27.9
4,359,043
D
63.7%Clinton2,536,633
30.2%Trump1,201,784
6.1%
D+33.5
D+4.2
D+31.4
3,983,323
D
63.9%Obama2,364,274
34.5%Romney1,277,661
1.6%
D+29.4
R+6.6
D+25.5
3,701,534
D
67.4%Obama2,622,151
31.5%McCain1,224,214
1.1%
D+35.9
D+15.0
D+28.7
3,888,744
D
60.1%Kerry2,185,552
39.2%Bush1,425,172
0.7%
D+20.9
±0.0
D+23.4
3,635,742
D
59.1%Gore1,912,353
38.2%Bush1,236,047
2.7%
D+20.9
R+3.2
D+20.4
3,236,328
D
58.0%Clinton1,680,475
33.9%Dole982,920
8.1%
D+24.1
D+7.2
D+15.6
2,896,618
D
50.3%Clinton1,728,653
33.4%Bush1,149,085
16.3%
D+16.9
D+17.1
D+11.3
3,437,486
R
49.5%Dukakis1,544,766
49.7%Bush1,551,731
0.8%
R+0.2
D+8.6
D+7.5
3,120,515
R
45.3%Mondale1,489,171
54.1%Reagan1,777,954
0.6%
R+8.8
R+8.2
D+9.4
3,285,755
R
45.3%Carter1,461,625
45.9%Reagan1,479,117
8.8%
R+0.5
R+0.7
D+9.2
3,225,886
D
49.1%Carter1,576,612
49.0%Ford1,571,953
1.9%
D+0.1
D+15.4
R+1.9
3,209,323
R
42.1%McGovern1,360,084
57.4%Nixon1,854,020
0.5%
R+15.3
R+17.1
D+7.9
3,230,894
D
46.3%Humphrey1,467,372
44.6%Nixon1,411,110
9.1%
D+1.8
R+18.9
D+2.5
3,166,805
D
60.3%Johnson1,948,003
39.6%Goldwater1,279,444
0.0%
D+20.7
D+13.5
R+1.9
3,228,502
D
53.5%Kennedy1,715,958
46.2%Nixon1,483,515
0.3%
D+7.2
D+25.6
D+7.1
3,208,010
R
40.7%Stevenson1,188,804
59.0%Eisenhower1,723,199
0.2%
R+18.3
R+13.2
R+2.9
2,919,138
R
47.3%Stevenson1,398,130
52.4%Eisenhower1,549,463
0.3%
R+5.1
R+9.9
D+5.6
2,955,984
D
52.0%Truman1,403,160
47.2%Dewey1,273,533
0.8%
D+4.8
R+6.4
D+0.3
2,697,711
D
55.5%Roosevelt1,471,111
44.2%Dewey1,173,595
0.3%
D+11.2
D+4.4
D+3.7
2,652,701
D
53.2%Roosevelt1,369,081
46.4%Willkie1,193,698
0.4%
D+6.8
R+16.6
R+3.1
2,572,983
D
60.3%Roosevelt1,456,991
36.9%Landon892,452
2.7%
D+23.4
D+13.0
R+0.9
2,415,668
D
53.6%Roosevelt1,089,483
43.2%Hoover877,985
3.2%
D+10.4
D+20.9
R+7.4
2,032,277
R
44.4%Smith828,745
54.9%Hoover1,024,715
0.8%
R+10.5
D+33.5
D+7.0
1,867,631
R
19.2%Davis258,177
63.2%Coolidge849,704
17.6%
R+44.0
D+7.0
R+18.8
1,343,795
R
21.2%Cox228,458
72.3%Harding779,069
6.6%
R+51.1
R+40.0
R+24.9
1,078,242
R
42.5%Wilson435,450
53.5%Hughes548,421
4.0%
R+11.0
R+22.2
R+14.2
1,024,729
O
29.7%Wilson158,414
18.5%Taft98,792
51.7%
Roosevelt +22.0
D+33.3
R+8.4
533,037
R
35.4%Bryan182,748
57.4%Taft296,815
7.2%
R+22.1
D+13.2
R+12.5
516,819
R
25.5%Parker123,123
60.8%Roosevelt293,665
13.7%
R+35.3
R+25.8
R+15.6
482,984
R
43.9%Bryan216,972
53.4%McKinley263,797
2.8%
R+9.5
D+11.3
R+1.9
494,443
R
38.8%Bryan182,134
59.6%McKinley279,679
1.6%
R+20.8
R+28.2
R+14.7
469,156
D
52.2%Cleveland174,674
44.8%Harrison149,905
3.0%
D+7.4
—
D+5.7
334,528
voter registration
Registered voters
Total registered voters, over time
Registered voters
Voter registration in Chicago-Naperville-Elgin, IL-IN
Year
Total registered
2016
4,447,201
2018
4,572,522
2020
4,647,922
2022
4,920,798
2024
4,791,348
domestic migration
Who moves in and out
Net domestic migration over time
−33,708 net domestic migration · 2025
20112025
Net −984,178 over 2011–2025 · gain loss
Domestic migration in Chicago-Naperville-Elgin, IL-IN in Chicago-Naperville-Elgin, IL-IN: net domestic migration by year
Year
Net domestic migration
2011
−51,494
2012
−49,292
2013
−49,647
2014
−64,707
2015
−81,237
2016
−85,479
2017
−84,985
2018
−83,629
2019
−75,177
2021
−92,952
2022
−122,143
2023
−67,022
2024
−42,706
2025
−33,708
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.
Akashic
Political twins — metros
The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
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 →
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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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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.
