QuickFacts

Population per square mile in San Diego County, California is

735.8

23.7%

of persons in Ohio are under 18 years

13.5%

of persons in New York are 65 years and over

22.0%

of persons in Pennsylvania are under 18 years

15.4%

of persons in Pennsylvania are 65 years and over

8.1%

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

Population per square mile in New York city, New York is

27,012.5

28.0%

of persons in Harris County, Texas are under 18 years

21.3%

of persons in Florida are under 18 years

12.5%

of persons in Illinois are 65 years and over

Source: 2010 Census