QuickFacts

22.0%

of persons in Pennsylvania are under 18 years

Population per square mile in Cook County, Illinois is

5,495.1

11.4%

of persons in California are 65 years and over

13.8%

of persons in Michigan are 65 years and over

The population of San Diego County, California is

3,299,521

Median household income of Cook County, Illinois is

$55,251

17.3%

of persons in Florida are 65 years and over

11.9%

of persons in Cook County, Illinois are 65 years and over

9.0%

of persons in Houston city, Texas are 65 years and over

12.1%

of persons in New York city, New York are 65 years and over

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census