QuickFacts

11.9%

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

23.1%

of persons in Chicago city, Illinois are under 18 years

23.9%

of persons in North Carolina are under 18 years

Population per square mile in Cook County, Illinois is

5,495.1

Population per square mile in Los Angeles city, California is

8,092.3

11.4%

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

Population per square mile in Cook County, Illinois is

5,495.1

33.7%

of persons 25 years+ in New York have a bachelor's degree or higher

Population per square mile in North Carolina is

196.1

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census