QuickFacts

The population of California is

39,250,017

The population of Illinois is

12,801,539

24.5%

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

Population per square mile in New York is

411.2

12.5%

of persons in Illinois are 65 years and over

35.8%

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

Population per square mile in Los Angeles County, California is

2,419.6

Population per square mile in New York is

411.2

Population per square mile in San Diego County, California is

735.8

11.9%

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

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census