QuickFacts

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Median household income of Pennsylvania is

$53,599

11.9%

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

Median household income of San Diego County, California is

$64,309

The population of Los Angeles city, California is

3,971,883

Median household income of North Carolina is

$46,868

12.9%

of persons in North Carolina are 65 years and over

Population per square mile in Chicago city, Illinois is

11,841.8

Population per square mile in Ohio is

282.3

26.4%

of persons in Maricopa County, Arizona are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census