QuickFacts

The population of Pennsylvania is

12,802,503

The population of Cook County, Illinois is

5,246,456

The population of New York is

19,795,791

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

26.4%

of persons in Maricopa County, Arizona are under 18 years

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

35.1%

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

In Illinois

61.0%

of females 16 years+ are in the civilian labor force

Median household income of California is

$61,489

Median household income of New York city, New York is

$52,737

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey