QuickFacts

The population of New York is

19,745,289

25.0%

of persons in California are under 18 years

23.1%

of persons in Chicago city, Illinois are under 18 years

Population per square mile in Cook County, Illinois is

5,495.1

The population of Philadelphia city, Pennsylvania is

1,567,442

The population of Maricopa County, Arizona is

4,167,947

23.4%

of persons in San Diego County, California are under 18 years

Median household income of Illinois is

$57,574

The population of Michigan is

9,928,300

Median household income of Philadelphia city, Pennsylvania is

$38,253

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: American Community Survey