QuickFacts

21.6%

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

The population of Maricopa County, Arizona is

4,167,947

The population of Philadelphia city, Pennsylvania is

1,567,442

32.3%

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

Population per square mile in Los Angeles County, California is

2,419.6

Median household income of California is

$61,818

Median household income of Illinois is

$57,574

Population per square mile in Chicago city, Illinois is

11,841.8

11.4%

of persons in San Diego County, California are 65 years and over

23.1%

of persons in Chicago city, Illinois are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census