QuickFacts

21.6%

of persons in New York city, New York are under 18 years

35.6%

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

Population per square mile in California is

239.1

Population per square mile in San Diego County, California is

735.8

The population of San Diego County, California is

3,299,521

11.4%

of persons in California are 65 years and over

11.9%

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

35.7%

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

Population per square mile in Pennsylvania is

283.9

10.9%

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

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census