QuickFacts

23.1%

of persons in Chicago city, Illinois are under 18 years

22.0%

of persons in Pennsylvania are under 18 years

The population of Pennsylvania is

12,784,227

10.3%

of persons in Chicago city, Illinois are 65 years and over

28.6%

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

Population per square mile in California is

239.1

24.5%

of persons in Los Angeles County, California are under 18 years

24.5%

of persons in Los Angeles County, California are under 18 years

The population of Michigan is

9,928,300

The population of San Diego County, California is

3,299,521

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates