QuickFacts

Population per square mile in Illinois is

231.1

The population of Illinois is

12,801,539

25.0%

of persons in California are under 18 years

The population of Los Angeles city, California is

3,971,883

The population of Los Angeles County, California is

10,170,292

12.1%

of persons in New York city, New York are 65 years and over

8.1%

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

11.4%

of persons in California are 65 years and over

23.1%

of persons in Los Angeles city, California are under 18 years

The population of Los Angeles County, California is

10,170,292

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates