QuickFacts

24.4%

of persons in Illinois are under 18 years

23.1%

of persons in Chicago city, Illinois are under 18 years

24.4%

of persons in Illinois are under 18 years

The population of Cook County, Illinois is

5,238,216

Median household income of California is

$61,818

Median household income of Cook County, Illinois is

$55,251

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

27,012.5

21.6%

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

23.7%

of persons in Ohio are under 18 years

The population of Texas is

27,862,596

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates