QuickFacts

24.5%

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

The population of Los Angeles County, California is

10,170,292

The population of Illinois is

12,801,539

25.0%

of persons in California are under 18 years

Population per square mile in Cook County, Illinois is

5,495.1

26.9%

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

Median household income of Philadelphia city, Pennsylvania is

$38,253

Median household income of Pennsylvania is

$53,599

Median household income of Maricopa County, Arizona is

$54,229

23.7%

of persons in Ohio are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census