QuickFacts

23.7%

of persons in Ohio are under 18 years

28.6%

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

11.9%

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

The population of Los Angeles County, California is

10,170,292

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

10.5%

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

Population per square mile in Pennsylvania is

283.9

The population of California is

39,250,017

Population per square mile in New York city, New York is

27,012.5

The population of Pennsylvania is

12,784,227

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates