QuickFacts

The population of Pennsylvania is

12,784,227

The population of Los Angeles city, California is

3,971,883

12.1%

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

32.3%

of persons 25 years+ in Illinois have a bachelor's degree or higher

24.4%

of persons in Illinois are under 18 years

Population per square mile in Harris County, Texas is

2,402.4

Population per square mile in Maricopa County, Arizona is

414.9

The population of Maricopa County, Arizona is

4,167,947

Population per square mile in New York is

411.2

28.0%

of persons in Harris County, Texas are under 18 years

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census