QuickFacts

26.4%

of persons in Maricopa County, Arizona are under 18 years

Population per square mile in Harris County, Texas is

2,402.4

The population of Maricopa County, Arizona is

4,167,947

The population of Los Angeles city, California is

3,971,883

11.9%

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

The population of Illinois is

12,801,539

The population of Los Angeles city, California is

3,971,883

30.4%

of persons 25 years+ in Houston city, Texas have a bachelor's degree or higher

30.3%

of persons 25 years+ in Los Angeles County, California have a bachelor's degree or higher

24.4%

of persons in Illinois are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census