QuickFacts

25.0%

of persons in California are under 18 years

10.3%

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

24.5%

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

Population per square mile in New York city, New York is

27,012.5

23.7%

of persons in Ohio are under 18 years

The population of Cook County, Illinois is

5,238,216

Median household income of San Diego County, California is

$64,309

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

23.1%

of persons in Chicago city, Illinois are under 18 years

25.0%

of persons in California are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census