QuickFacts

Population per square mile in Cook County, Illinois is

5,495.1

23.1%

of persons in Chicago city, Illinois are under 18 years

35.8%

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

35.8%

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

The population of Illinois is

12,801,539

Population per square mile in North Carolina is

196.1

26.4%

of persons in Maricopa County, Arizona are under 18 years

23.7%

of persons in Ohio are under 18 years

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Median household income of Michigan is

$49,576

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey