County

Cook County

Illinois

5,182,090 population$83,498 median income4,089,888 voting age0 active campaigns

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Officials Representing Cook County

Congressional District Coverage

Cook County is 10% in IL Congressional District 2, 9% in IL Congressional District 6, 7% in IL Congressional District 5, 6% in IL Congressional District 8, 6% in IL Congressional District 1, 5% in IL Congressional District 4, 5% in IL Congressional District 9, and 11% across 4 other districts.

Area-weighted; population-weighted shares may differ in counties with large urban/rural density splits. Some district boundaries are unavailable so coverage may be incomplete — percentages above won't sum to 100%.

Median Income

$83,498

≈ Illinois

Bachelor's+

42.7%

↑ 13%vs 37.9%

Under 18

21.1%

↓ 4%vs 21.9%

Owner-Occupied

57.7%

↓ 14%vs 67.1%

White (non-Hispanic)

43.6%

↔ 29%vs 61.0%

Demographics

American Community Survey 2024 5-year estimates

Race & Ethnicity

White43.6%

Hispanic/Latino26.8%

Black22.1%

Asian8.0%

Two or More13.0%

Other13.4%

Income & Economy

Median Household Income$83,498

Per Capita Income$49,329

Poverty Rate13.5%

Unemployment7.0%

Education

High School+88.6%

Bachelor's+42.7%

Housing

Median Home Value$324,500

Median Rent$1,435

Owner-Occupied57.7%

Health Insurance

Uninsured8.8%

Age Distribution

Under 1821.1%

65 and Over16.0%

Median Age38.0