QuickFacts

23.1%

of persons in Chicago city, Illinois are under 18 years

23.9%

of persons in North Carolina are under 18 years

Population per square mile in San Diego County, California is

735.8

23.9%

of persons in North Carolina are under 18 years

11.4%

of persons in California are 65 years and over

32.3%

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

10.9%

of persons in Los Angeles County, California are 65 years and over

32.3%

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

11.9%

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

The population of Pennsylvania is

12,784,227

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates