QuickFacts

The population of Maricopa County, Arizona is

4,167,947

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Population per square mile in Chicago city, Illinois is

11,841.8

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 Los Angeles city, California is

$50,205

23.1%

of persons in Chicago city, Illinois are under 18 years

23.7%

of persons in Michigan are under 18 years

Median household income of Maricopa County, Arizona is

$54,229

The population of Pennsylvania is

12,784,227

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates