QuickFacts

23.7%

of persons in Ohio are under 18 years

12.5%

of persons in Illinois are 65 years and over

Population per square mile in Cook County, Illinois is

5,495.1

The population of Chicago city, Illinois is

2,720,546

The population of Chicago city, Illinois is

2,720,546

23.4%

of persons in San Diego County, California are under 18 years

24.4%

of persons in Illinois are under 18 years

35.8%

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

The population of North Carolina is

10,146,788

Median household income of Philadelphia city, Pennsylvania is

$38,253

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: American Community Survey