QuickFacts

Population per square mile in Los Angeles County, California is

2,419.6

35.6%

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

Population per square mile in Cook County, Illinois is

5,495.1

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

The population of Cook County, Illinois is

5,238,216

11.4%

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

17.3%

of persons in Florida are 65 years and over

Population per square mile in California is

239.1

Population per square mile in Florida is

350.6

14.1%

of persons in Ohio are 65 years and over

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census