QuickFacts

The population of Chicago city, Illinois is

2,720,546

The population of Cook County, Illinois is

5,238,216

Median household income of Maricopa County, Arizona is

$54,229

23.7%

of persons in Michigan are under 18 years

The population of California is

39,250,017

Median household income of San Diego County, California is

$64,309

15.4%

of persons in Pennsylvania are 65 years and over

Population per square mile in Ohio is

282.3

31.4%

of persons 25 years+ in California have a bachelor's degree or higher

Population per square mile in Los Angeles city, California is

8,092.3

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census