QuickFacts

Population per square mile in Michigan is

174.8

Population per square mile in Cook County, Illinois is

5,495.1

23.7%

of persons in Michigan are under 18 years

Median household income of Los Angeles County, California is

$55,870

24.4%

of persons in Illinois are under 18 years

15.4%

of persons in Pennsylvania are 65 years and over

24.5%

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

23.1%

of persons in Chicago city, Illinois are under 18 years

11.4%

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

Population per square mile in Florida is

350.6

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census