QuickFacts

11.4%

of persons in San Diego County, California are 65 years and over

30.4%

of persons 25 years+ in Maricopa County, Arizona 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 Michigan is

9,928,300

The population of Chicago city, Illinois is

2,720,546

Population per square mile in Florida is

350.6

Population per square mile in Cook County, Illinois is

5,495.1

12.1%

of persons in New York city, New York are 65 years and over

Population per square mile in San Diego County, California is

735.8

Median household income of Philadelphia city, Pennsylvania is

$38,253

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey