QuickFacts

26.4%

of persons in Maricopa County, Arizona are under 18 years

25.9%

of persons in Houston city, Texas are under 18 years

Median household income of Pennsylvania is

$53,115

12.1%

of persons in New York city, New York are 65 years and over

Population per square mile in Cook County, Illinois is

5,495.1

The population of Florida is

20,271,272

The population of Philadelphia city, Pennsylvania is

1,560,297

Population per square mile in Cook County, Illinois is

5,495.1

12.9%

of persons in North Carolina are 65 years and over

Population per square mile in Los Angeles city, California is

8,092.3

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census