QuickFacts

Population per square mile in Cook County, Illinois is

5,495.1

24.4%

of persons in Illinois are under 18 years

26.4%

of persons in Maricopa County, Arizona are under 18 years

35.7%

of persons 25 years+ in New York city, New York have a bachelor's degree or higher

The population of Philadelphia city, Pennsylvania is

1,567,442

Median household income of Los Angeles city, California is

$50,205

21.3%

of persons in Florida are under 18 years

23.1%

of persons in Chicago city, Illinois are under 18 years

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

27,012.5

The population of Los Angeles County, California is

10,170,292

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates