QuickFacts

11.4%

of persons in California are 65 years and over

Population per square mile in New York is

411.2

35.7%

of persons 25 years+ in San Diego County, California have a bachelor's degree or higher

23.7%

of persons in Cook County, Illinois are under 18 years

The population of Cook County, Illinois is

5,238,216

10.5%

of persons in Los Angeles city, California are 65 years and over

Population per square mile in Los Angeles city, California is

8,092.3

The population of Philadelphia city, Pennsylvania is

1,567,442

12.1%

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

10.3%

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

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census