QuickFacts

Population per square mile in New York city, New York is

27,012.5

22.0%

of persons in Pennsylvania are under 18 years

Median household income of Cook County, Illinois is

$54,828

Population per square mile in Pennsylvania is

283.9

31.9%

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

The population of Maricopa County, Arizona is

4,087,191

Population per square mile in Chicago city, Illinois is

11,841.8

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

11.9%

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

Median household income of Los Angeles County, California is

$55,870

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey