QuickFacts

Population per square mile in Cook County, Illinois is

5,495.1

Population per square mile in Florida is

350.6

12.1%

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

23.7%

of persons in Michigan are under 18 years

The population of Maricopa County, Arizona is

4,087,191

Population per square mile in Cook County, Illinois is

5,495.1

Median household income of Maricopa County, Arizona is

$53,689

Median household income of Michigan is

$49,087

The population of California is

39,144,818

24.5%

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

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census