QuickFacts

12.5%

of persons in Illinois are 65 years and over

24.5%

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

Median household income of Illinois is

$57,574

22.3%

of persons in New York are under 18 years

Median household income of San Diego County, California is

$64,309

28.0%

of persons in Harris County, Texas are under 18 years

The population of Chicago city, Illinois is

2,720,546

Population per square mile in Georgia is

168.4

Population per square mile in Illinois is

231.1

26.4%

of persons in Maricopa County, Arizona are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census