County Dossier
Cook County
Illinois | County
Population
5,182,090
Land Area
944.9 sq mi
Context
Metro
Geography
County silhouette
- Land Area
- 944.9 sq mi
- Water Area
- 689.7 sq mi
- Water Share
- 42.2%
Terrain Layer
Open the county terrain view inside the atlas flow.
Population & Housing
Population
5,182,090
- Density
- 5,484.1 / sq mi
- Households
- 2,100,230
- Housing Units
- 2,276,493
- Median Age
- 38.0 years
Income & Economy
Median Household Income
$83,498
GDP
$546.44B
Real GDP Change+1.3%
- Per Capita Income
- $49,329
- Personal Income
- $414.43B
- Personal Income Per Capita
- $79,964
Classification
RUCC 1
Metro
Counties in metro areas of 1 million population or more
Relief
Min
253 ft
Mean
625 ft
Max
946 ft