QuickFacts

The population of Philadelphia city, Pennsylvania is

1,567,442

Population per square mile in Los Angeles County, California is

2,419.6

Population per square mile in Los Angeles County, California is

2,419.6

The population of New York is

19,745,289

23.7%

of persons in Cook County, Illinois are under 18 years

22.0%

of persons in Pennsylvania are under 18 years

The population of Pennsylvania is

12,784,227

Population per square mile in Los Angeles city, California is

8,092.3

10.3%

of persons in Texas are 65 years and over

Population per square mile in Maricopa County, Arizona is

414.9

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census