QuickFacts

22.0%

of persons in Pennsylvania are under 18 years

Population per square mile in Maricopa County, Arizona is

414.9

35.8%

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

The population of Pennsylvania is

12,784,227

The population of California is

39,250,017

Median household income of California is

$61,818

8.1%

of persons in Harris County, Texas are 65 years and over

10.3%

of persons in Chicago city, Illinois are 65 years and over

10.3%

of persons in Chicago city, Illinois are 65 years and over

Median household income of San Diego County, California is

$64,309

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey