QuickFacts

23.1%

of persons in Chicago city, Illinois are under 18 years

24.4%

of persons in Illinois are under 18 years

25.0%

of persons in California are under 18 years

30.4%

of persons 25 years+ in Maricopa County, Arizona have a bachelor's degree or higher

17.3%

of persons in Florida are 65 years and over

The population of Cook County, Illinois is

5,238,216

The population of Chicago city, Illinois is

2,720,546

The population of Houston city, Texas is

2,296,224

In Maricopa County, Arizona

57.3%

of females 16 years+ are in the civilian labor force

The population of San Diego County, California is

3,299,521

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: Population Estimates