Cook County, IL

IL · Presidential Elections 1892–2024

D+41.6
2024 Margin
R+8.7%
2020→2024 Swing
D since 1976
Voting Streak
5.2M
Population

Cook County, IL (Illinois) voted D+41.6 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 1,447,821 votes (69.63%) to 583,852 (28.08%) for Trump.

This represents a R+8.7% swing toward Republicans compared to 2020. Cook County is classified as a deep Democratic county. Cook County has voted Democratic in every presidential election since 1976. The county has a population of approximately 5,182,090.

Quick Stats

2024 ResultD+41.6
2020→2024 SwingR+8.7%
Voting StreakD since 1976
Elections on Record34

Demographics

Population5,182,090
Median Age
38.0(US: 38.7)
College (BA+)
42.7%(US: 35.2%)
Median Income
$83,498(US: $80k)
White (non-Hisp)
40.5%(US: 57.6%)
Hispanic
26.8%(US: 19.1%)
Black
22.9%(US: 12.2%)
Asian
7.7%(US: 5.7%)
Homeownership
57.7%(US: 64.5%)
Poverty Rate
13.5%(US: 12.3%)
Veterans
3.2%(US: 6.2%)
Non-English (CVAP)
27.5%(US: 17.0%)
Source: Census ACS 5-Year (2020-2024)

Community Profile

Religious Composition

Source: Religion Census 2020
Catholic
28.9%(Above Average)
Evangelical
7.4%(Below Average)
Black Protestant
5.4%(Major Center)
Mainline Protestant
2.9%
Jewish
0.6%
+ 1 more traditions

Ancestry Groups

Source: Census ACS

Top reported ancestry groups (compared to national average).

Mexican
20.1%Above Average(1.8x)
German
9.0%
Irish
8.4%
Polish
7.0%Significant Hub(2.8x)
Italian
4.8%
English
3.6%
+ 4 more reported ancestry groups

Age Distribution

Median:38.0 yrs(US: 38.5)
Under 18
21.1%
18-29
8.7%↓
30-44
23.2%↑
45-64
31.1%↑
65+
16.0%
National average

Employment by Industry

Census ACS
Professional & Technical
15.9%(1.3x US)
Manufacturing
9.2%
Retail Trade
9.1%(0.9x US)
Educational Services
8.5%
Healthcare & Social Services
4.7%
Construction
4.6%(0.7x US)
National average

Presidential Elections

Presidential Results

YearDemocratRepublicanMarginSwing
202469.6%(1,447,821)28.1%(583,852)D+41.6R+8.7
202074.2%(1,725,973)24.0%(558,269)D+50.2R+2.9
201673.9%(1,611,946)20.8%(453,287)D+53.1D+3.9
201273.9%(1,488,537)24.6%(495,542)D+49.3R+4.1
200876.2%(1,629,024)22.8%(487,736)D+53.4D+12.3
200470.3%(1,439,724)29.1%(597,405)D+41.1D+1.1
200068.6%(1,280,547)28.6%(534,542)D+40.0R+0.1
199666.8%(1,153,289)26.7%(461,557)D+40.1D+10.1
199258.2%(1,249,533)28.2%(605,300)D+30.0D+17.6
198855.8%(1,129,973)43.4%(878,582)D+12.4D+9.8

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

Presidential Margin Trend

Cook County, IL • 1892–2024

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

Senate Elections

Senate Results

YearDemocratRepublicanMarginSwing
202275.8%(1,068,943)24.2%(341,447)D+51.6D+4.6
202068.8%(1,574,685)21.8%(499,034)D+47.0D+1.4
201670.4%(1,499,900)24.9%(529,781)D+45.5D+0.5
201470.9%(945,635)25.9%(345,255)D+45.0D+12.4
201064.3%(898,751)31.6%(442,029)D+32.7R+30.2
200879.9%(1,629,347)17.0%(347,434)D+62.9R+1.8
200481.1%(1,629,296)16.4%(329,671)D+64.7D+20.8
200271.3%(953,233)27.3%(365,335)D+44.0D+15.1
199863.6%(868,796)34.7%(474,635)D+28.9R+10.2
199668.2%(1,160,414)29.1%(495,953)D+39.0D+13.4

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

Governor Elections

Governor Results

YearDemocratRepublicanMarginSwing
202273.1%(1,065,445)23.7%(344,902)D+49.4D+1.8
201871.9%(1,262,334)24.3%(426,196)D+47.6D+16.1
201464.7%(870,866)33.3%(447,388)D+31.5R+4.3
201064.4%(900,838)28.6%(400,285)D+35.8R+3.0
200665.2%(854,133)26.4%(345,528)D+38.8D+4.7
200265.9%(905,188)31.8%(436,214)D+34.2D+24.5
199854.0%(713,272)44.3%(585,008)D+9.7D+15.1
199446.7%(568,737)52.0%(634,353)R+5.4R+13.8
199053.6%(707,523)45.2%(596,642)D+8.4D+46.2
19867.4%(103,251)45.2%(628,530)R+37.8R+55.9

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

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