QuickFacts

11.4%

of persons in San Diego County, California are 65 years and over

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Population per square mile in Cook County, Illinois is

5,495.1

Median household income of Florida is

$47,212

31.9%

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

Population per square mile in Harris County, Texas is

2,402.4

The population of Florida is

20,271,272

The population of Michigan is

9,922,576

Population per square mile in Florida is

350.6

30.0%

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

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey