QuickFacts

The population of Harris County, Texas is

4,538,028

25.9%

of persons in Houston city, Texas are under 18 years

12.5%

of persons in Illinois are 65 years and over

28.0%

of persons in Harris County, Texas are under 18 years

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

Median household income of Pennsylvania is

$53,599

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

The population of Pennsylvania is

12,784,227

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census