QuickFacts

11.4%

of persons in California are 65 years and over

12.1%

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

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

27,012.5

25.0%

of persons in California are under 18 years

11.4%

of persons in San Diego County, California are 65 years and over

Population per square mile in Ohio is

282.3

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

12.1%

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

Population per square mile in Ohio is

282.3

27.3%

of persons in Texas are under 18 years

Source: 2010 Census