QuickFacts

23.1%

of persons in Chicago city, Illinois are under 18 years

Median household income of Chicago city, Illinois is

$48,522

Median household income of San Diego County, California is

$64,309

26.4%

of persons in Maricopa County, Arizona are under 18 years

Median household income of Philadelphia city, Pennsylvania is

$38,253

Median household income of Los Angeles County, California is

$56,196

Population per square mile in Cook County, Illinois is

5,495.1

The population of Pennsylvania is

12,784,227

The population of Pennsylvania is

12,784,227

26.4%

of persons in Maricopa County, Arizona are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census