QuickFacts

The population of San Diego County, California is

3,299,521

Population per square mile in Cook County, Illinois is

5,495.1

10.3%

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

26.1%

of persons 25 years+ in Ohio have a bachelor's degree or higher

Median household income of Maricopa County, Arizona is

$54,229

Population per square mile in Illinois is

231.1

The population of Florida is

20,612,439

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

23.1%

of persons in Chicago city, Illinois are under 18 years

28.6%

of persons 25 years+ in Pennsylvania have a bachelor's degree or higher

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey