QuickFacts

Population per square mile in Maricopa County, Arizona is

414.9

Median household income of New York city, New York is

$53,373

31.4%

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

The population of Michigan is

9,928,300

Population per square mile in Cook County, Illinois is

5,495.1

11.9%

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

12.5%

of persons in Illinois are 65 years and over

12.1%

of persons in Maricopa County, Arizona are 65 years and over

12.5%

of persons in Illinois are 65 years and over

22.0%

of persons in Pennsylvania are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census