DuPage County, IL

IL · Presidential Elections 1892–2024

D+13.1
2024 Margin
R+4.8%
2020→2024 Swing
D since 2008
Voting Streak
930K
Population

DuPage County, IL (Illinois) voted D+13.1 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 251,164 votes (54.97%) to 191,243 (41.86%) for Trump.

This represents a R+4.8% swing toward Republicans compared to 2020. DuPage County is classified as a lean Democratic county. DuPage County has voted Democratic in every presidential election since 2008. The county has a population of approximately 930,024.

Quick Stats

2024 ResultD+13.1
2020→2024 SwingR+4.8%
Voting StreakD since 2008
Elections on Record34

Demographics

Population930,024
Median Age
40.2(US: 38.7)
College (BA+)
51.8%(US: 35.2%)
Median Income
$112,096(US: $80k)
White (non-Hisp)
63.1%(US: 57.6%)
Hispanic
16.1%(US: 19.1%)
Black
4.9%(US: 12.2%)
Asian
12.6%(US: 5.7%)
Homeownership
73.1%(US: 64.5%)
Poverty Rate
6.6%(US: 12.3%)
Veterans
3.5%(US: 6.2%)
Non-English (CVAP)
22.3%(US: 17.0%)
Source: Census ACS 5-Year (2020-2024)

Community Profile

Religious Composition

Source: Religion Census 2020
Catholic
36.2%(Above Average)
Evangelical
9.6%(Below Average)
Mainline Protestant
5.7%
LDS/Mormon
0.4%
Black Protestant
0.4%

Ancestry Groups

Source: Census ACS

Top reported ancestry groups (compared to national average).

German
16.1%(1.3x)
Irish
13.0%(1.4x)
Mexican
11.9%
Italian
9.8%Above Average(2.0x)
Polish
9.7%Significant Hub(3.9x)
English
6.2%
+ 4 more reported ancestry groups

Age Distribution

Median:40.2 yrs(US: 38.5)
Under 18
22.2%
18-29
8.3%↓
30-44
19.3%
45-64
32.9%↑
65+
17.3%
National average

Employment by Industry

Census ACS
Professional & Technical
15.7%(1.3x US)
Manufacturing
11.9%(1.2x US)
Retail Trade
10.1%
Educational Services
7.6%(0.9x US)
Construction
5.1%(0.8x US)
Healthcare & Social Services
4.3%
National average

Presidential Elections

Presidential Results

YearDemocratRepublicanMarginSwing
202455.0%(251,164)41.9%(191,243)D+13.1R+4.8
202057.7%(281,222)39.7%(193,611)D+18.0D+3.5
201653.1%(228,622)38.6%(166,415)D+14.4D+13.3
201249.7%(199,460)48.6%(195,046)D+1.1R+9.7
200854.7%(228,698)43.9%(183,626)D+10.8D+20.4
200444.8%(180,097)54.4%(218,902)R+9.6D+3.7
200041.9%(152,550)55.2%(201,037)R+13.3R+2.5
199640.0%(129,709)50.7%(164,630)R+10.8D+6.4
199230.9%(114,564)48.0%(178,271)R+17.2D+22.2
198830.0%(94,285)69.4%(217,907)R+39.4D+12.5

Source: Official state election returns via MIT Election Data + Science Lab

Presidential Margin Trend

DuPage County, IL • 1892–2024

D+R++60+40+200-20-40-6018921900190819161924193219401948195619641972198019881996200420122020
Democratic margin
Republican margin

Senate Elections

Senate Results

YearDemocratRepublicanMarginSwing
202257.9%(194,681)42.1%(141,316)D+15.9D+1.8
202054.8%(264,921)40.7%(196,759)D+14.1D+10.4
201649.1%(208,669)45.4%(193,069)D+3.7D+8.8
201445.5%(129,941)50.6%(144,505)R+5.1D+15.1
201037.3%(106,429)57.5%(163,875)R+20.2R+41.2
200858.7%(240,521)37.6%(154,134)D+21.1R+11.3
200464.3%(251,445)31.9%(124,642)D+32.4D+42.7
200244.1%(119,485)54.3%(147,227)R+10.2D+19.0
199834.0%(85,405)63.2%(158,928)R+29.3R+19.3
199643.0%(137,810)53.0%(169,734)R+10.0D+9.6

Source: Official state election returns via MIT Election Data + Science Lab

Governor Elections

Governor Results

YearDemocratRepublicanMarginSwing
202254.7%(193,104)40.0%(141,170)D+14.7D+12.5
201848.4%(176,556)46.1%(168,347)D+2.2D+26.2
201436.8%(105,374)60.8%(174,041)R+24.0R+8.3
201038.6%(110,117)54.3%(154,986)R+15.7R+3.9
200638.7%(101,859)50.5%(132,938)R+11.8D+17.6
200233.9%(91,753)63.3%(171,386)R+29.4D+12.2
199828.4%(71,055)69.9%(175,223)R+41.6D+17.0
199419.9%(45,548)78.5%(179,395)R+58.6R+21.4
199031.0%(67,927)68.1%(149,436)R+37.2D+33.1
19862.8%(5,266)73.1%(136,238)R+70.3R+25.4

Source: Official state election returns via MIT Election Data + Science Lab

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