QuickFacts

11.4%

of persons in California are 65 years and over

The population of Los Angeles city, California is

3,971,883

The population of Cook County, Illinois is

5,238,216

Population per square mile in Illinois is

231.1

The population of North Carolina is

10,146,788

23.1%

of persons in Chicago city, Illinois are under 18 years

Population per square mile in Chicago city, Illinois is

11,841.8

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Median household income of Florida is

$47,507

23.7%

of persons in Cook County, Illinois are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census