QuickFacts

Population per square mile in Cook County, Illinois is

5,495.1

25.0%

of persons in California are under 18 years

21.6%

of persons in New York city, New York are under 18 years

Population per square mile in Maricopa County, Arizona is

414.9

13.8%

of persons in Michigan are 65 years and over

10.3%

of persons in Chicago city, Illinois are 65 years and over

Median household income of Chicago city, Illinois is

$47,831

13.5%

of persons in New York are 65 years and over

Median household income of Los Angeles County, California is

$55,870

Median household income of Philadelphia city, Pennsylvania is

$37,460

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey