QuickFacts

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

Median household income of California is

$61,818

The population of Maricopa County, Arizona is

4,167,947

Population per square mile in California is

239.1

23.9%

of persons in North Carolina are under 18 years

Median household income of Pennsylvania is

$53,599

Population per square mile in Los Angeles County, California is

2,419.6

27.3%

of persons in Texas are under 18 years

25.0%

of persons in California are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census