QuickFacts

23.9%

of persons in North Carolina are under 18 years

Population per square mile in Michigan is

174.8

The population of Los Angeles city, California is

3,971,883

22.0%

of persons in Pennsylvania are under 18 years

Population per square mile in Chicago city, Illinois is

11,841.8

The population of Florida is

20,612,439

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

11.9%

of persons in Cook County, Illinois are 65 years and over

Population per square mile in Los Angeles city, California is

8,092.3

12.1%

of persons in Maricopa County, Arizona are 65 years and over

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census