QuickFacts

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

27,012.5

23.1%

of persons in Chicago city, Illinois are under 18 years

The population of San Diego County, California is

3,299,521

Median household income of New York city, New York is

$53,373

Population per square mile in Maricopa County, Arizona is

414.9

Population per square mile in Cook County, Illinois is

5,495.1

The population of Cook County, Illinois is

5,238,216

30.4%

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

Median household income of Cook County, Illinois is

$55,251

12.1%

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

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census