QuickFacts

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Population per square mile in Michigan is

174.8

Population per square mile in Florida is

350.6

23.1%

of persons in Chicago city, Illinois are under 18 years

12.1%

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

24.4%

of persons in Illinois are under 18 years

11.9%

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

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

27,012.5

In Cook County, Illinois

61.0%

of females 16 years+ are in the civilian labor force

14.1%

of persons in Ohio are 65 years and over

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census