QuickFacts

24.4%

of persons in Illinois are under 18 years

26.4%

of persons in Maricopa County, Arizona are under 18 years

Median household income of California is

$61,489

Population per square mile in Illinois is

231.1

24.5%

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

8.1%

of persons in Harris County, Texas are 65 years and over

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

The population of Los Angeles city, California is

3,928,864

31.0%

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

28.1%

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

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey