QuickFacts

12.1%

of persons in Maricopa County, Arizona are 65 years and over

Population per square mile in Florida is

350.6

35.6%

of persons 25 years+ in Chicago city, Illinois have a bachelor's degree or higher

23.4%

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

The population of Pennsylvania is

12,784,227

22.0%

of persons in Pennsylvania are under 18 years

30.4%

of persons 25 years+ in Maricopa County, Arizona have a bachelor's degree or higher

Median household income of Harris County, Texas is

$54,457

12.1%

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

Population per square mile in California is

239.1

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census