QuickFacts

12.9%

of persons in North Carolina are 65 years and over

The population of Pennsylvania is

12,802,503

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

28.0%

of persons in Harris County, Texas are under 18 years

Population per square mile in Illinois is

231.1

Population per square mile in Michigan is

174.8

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

27,012.5

12.9%

of persons in North Carolina are 65 years and over

The population of California is

39,144,818

21.3%

of persons in Florida are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census