QuickFacts

12.1%

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

Population per square mile in Ohio is

282.3

The population of Ohio is

11,614,373

28.0%

of persons in Harris County, Texas are under 18 years

The population of Pennsylvania is

12,784,227

15.4%

of persons in Pennsylvania are 65 years and over

12.9%

of persons in North Carolina are 65 years and over

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

27,012.5

23.7%

of persons in Cook County, Illinois are under 18 years

24.5%

of persons in Los Angeles County, California are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census