QuickFacts

12.5%

of persons in Illinois are 65 years and over

11.9%

of persons in Cook County, Illinois are 65 years and over

Population per square mile in Illinois is

231.1

The population of Philadelphia city, Pennsylvania is

1,567,442

22.3%

of persons in New York are under 18 years

The population of Chicago city, Illinois is

2,720,546

Population per square mile in California is

239.1

26.1%

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

In Maricopa County, Arizona

57.3%

of females 16 years+ are in the civilian labor force

The population of Pennsylvania is

12,784,227

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates