QuickFacts

Population per square mile in California is

239.1

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

24.5%

of persons in Los Angeles County, California are under 18 years

Population per square mile in Illinois is

231.1

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Median household income of Maricopa County, Arizona is

$54,229

In Pennsylvania

58.3%

of females 16 years+ are in the civilian labor force

23.7%

of persons in Cook County, Illinois are under 18 years

23.7%

of persons in Michigan are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census