QuickFacts

25.0%

of persons in California are under 18 years

10.3%

of persons in Chicago city, Illinois are 65 years and over

Median household income of Cook County, Illinois is

$54,828

Population per square mile in New York city, New York is

27,012.5

23.1%

of persons in Chicago city, Illinois are under 18 years

23.7%

of persons in Cook County, Illinois are under 18 years

17.3%

of persons in Florida are 65 years and over

The population of Los Angeles city, California is

3,928,864

Population per square mile in New York city, New York is

27,012.5

The population of Cook County, Illinois is

5,246,456

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates