QuickFacts

23.7%

of persons in Cook County, Illinois are under 18 years

Median household income of New York is

$59,269

23.1%

of persons in Chicago city, Illinois are under 18 years

35.8%

of persons 25 years+ in Cook County, Illinois have a bachelor's degree or higher

28.6%

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

26.4%

of persons in Maricopa County, Arizona are under 18 years

Population per square mile in California is

239.1

The population of Los Angeles city, California is

3,971,883

Population per square mile in Los Angeles County, California is

2,419.6

The population of Chicago city, Illinois is

2,720,546

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates