QuickFacts

Population per square mile in Chicago city, Illinois is

11,841.8

23.7%

of persons in Cook County, Illinois are under 18 years

10.5%

of persons in Los Angeles city, California are 65 years and over

23.4%

of persons in San Diego County, California are under 18 years

23.1%

of persons in Chicago city, Illinois are under 18 years

28.6%

of persons 25 years+ in Pennsylvania have a bachelor's degree or higher

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

10.5%

of persons in Los Angeles city, California are 65 years and over

30.3%

of persons 25 years+ in Los Angeles County, California have a bachelor's degree or higher

Median household income of Cook County, Illinois is

$55,251

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey