QuickFacts

The population of Pennsylvania is

12,784,227

Population per square mile in Florida is

350.6

24.4%

of persons in Illinois are under 18 years

21.6%

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

12.5%

of persons in Illinois are 65 years and over

23.1%

of persons in Chicago city, Illinois are under 18 years

23.7%

of persons in Ohio are under 18 years

Population per square mile in Los Angeles city, California is

8,092.3

10.9%

of persons in Los Angeles County, California are 65 years and over

The population of New York is

19,745,289

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates