QuickFacts

12.1%

of persons in New York city, New York are 65 years and over

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Population per square mile in Florida is

350.6

28.0%

of persons in Harris County, Texas are under 18 years

12.1%

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

23.7%

of persons in Cook County, Illinois are under 18 years

The population of Cook County, Illinois is

5,238,216

34.2%

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

Population per square mile in Los Angeles County, California is

2,419.6

15.4%

of persons in Pennsylvania are 65 years and over

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census