Cook County, IL Map
Official Census boundary of Cook County, Illinois (FIPS 17031). Turn on flood zones, contours, land cover and school districts, measure distances, or click any spot to inspect it.
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Cook County Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
5,182,090
Households
2,100,230
Median household income
$83,498
Median age
38 years
Median home value
$324,500
Median gross rent
$1,435/mo
Owner-occupied homes
57.7%
Bachelor's degree or higher
42.7%
Below poverty level
13.5%
Land area
944.9 sq mi
Population density
5,484 / sq mi
Cities in Cook County
ZIP codes in Cook County
60004600056001660018600256002660056600676006860074600766007760090601076013360169601736019260193601946019560201602026020360208603016030260304604026040960453604626046760477604876060160602606036060460605606066060760608606096061060611606126061360614606156061660617606186061960620606216062260623606246062560626606286062960630606316063260633606346063660637606386063960640606416064260804