QuickFacts

22.0%

of persons in Pennsylvania are under 18 years

22.3%

of persons in New York are under 18 years

Population per square mile in Harris County, Texas is

2,402.4

8.1%

of persons in Harris County, Texas are 65 years and over

Median household income of Cook County, Illinois is

$55,251

Population per square mile in Harris County, Texas is

2,402.4

Median household income of Los Angeles city, California is

$50,205

12.1%

of persons in Maricopa County, Arizona are 65 years and over

Population per square mile in Ohio is

282.3

The population of Pennsylvania is

12,784,227

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates