QuickFacts

24.4%

of persons in Illinois are under 18 years

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

27,012.5

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

27,012.5

The population of Cook County, Illinois is

5,238,216

Population per square mile in Ohio is

282.3

23.7%

of persons in Michigan are under 18 years

11.9%

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

24.4%

of persons in Illinois are under 18 years

Population per square mile in Ohio is

282.3

25.4%

of persons 25 years+ in Philadelphia city, Pennsylvania have a bachelor's degree or higher

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey