QuickFacts

Population per square mile in Georgia is

168.4

23.4%

of persons in San Diego County, California are under 18 years

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

27,012.5

The population of Pennsylvania is

12,784,227

10.3%

of persons in Chicago city, Illinois are 65 years and over

The population of San Diego County, California is

3,299,521

Population per square mile in Illinois is

231.1

17.3%

of persons in Florida are 65 years and over

Population per square mile in Florida is

350.6

12.1%

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

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census