QuickFacts

Population per square mile in Maricopa County, Arizona is

414.9

Population per square mile in Chicago city, Illinois is

11,841.8

The population of Maricopa County, Arizona is

4,167,947

11.4%

of persons in California are 65 years and over

The population of New York is

19,745,289

The population of Chicago city, Illinois is

2,720,546

24.4%

of persons in Illinois are under 18 years

The population of Pennsylvania is

12,784,227

10.5%

of persons in Los Angeles city, California are 65 years and over

Median household income of Los Angeles city, California is

$50,205

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey