QuickFacts

8.1%

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

22.0%

of persons in Pennsylvania are under 18 years

13.8%

of persons in Michigan are 65 years and over

22.0%

of persons in Pennsylvania are under 18 years

The population of Los Angeles city, California is

3,971,883

12.5%

of persons in Illinois are 65 years and over

The population of Maricopa County, Arizona is

4,167,947

25.7%

of persons in Georgia are under 18 years

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

27,012.5

10.5%

of persons in Los Angeles city, California are 65 years and over

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census