QuickFacts

24.5%

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

21.6%

of persons in New York city, New York are under 18 years

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

27,012.5

In Texas

57.9%

of females 16 years+ are in the civilian labor force

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

17.3%

of persons in Florida are 65 years and over

23.1%

of persons in Chicago city, Illinois are under 18 years

Population per square mile in Maricopa County, Arizona is

414.9

Population per square mile in Cook County, Illinois is

5,495.1

The population of Cook County, Illinois is

5,246,456

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates