QuickFacts

The population of Cook County, Illinois is

5,238,216

25.0%

of persons in California are under 18 years

Population per square mile in Illinois is

231.1

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Population per square mile in Michigan is

174.8

10.3%

of persons in Texas are 65 years and over

23.1%

of persons in Chicago city, Illinois are under 18 years

The population of Illinois is

12,801,539

12.1%

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

In Texas

57.7%

of females 16 years+ are in the civilian labor force

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey