QuickFacts

10.3%

of persons in Texas are 65 years and over

23.4%

of persons in San Diego County, California are under 18 years

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

21.6%

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

Median household income of Maricopa County, Arizona is

$54,229

13.8%

of persons in Michigan are 65 years and over

Median household income of Philadelphia city, Pennsylvania is

$38,253

Population per square mile in Maricopa County, Arizona is

414.9

22.3%

of persons in New York are under 18 years

The population of Philadelphia city, Pennsylvania is

1,567,442

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates