QuickFacts

The population of Illinois is

12,801,539

The population of Los Angeles city, California is

3,971,883

10.7%

of persons in Georgia are 65 years and over

24.4%

of persons in Illinois are under 18 years

Population per square mile in Maricopa County, Arizona is

414.9

Population per square mile in Cook County, Illinois is

5,495.1

13.8%

of persons in Michigan are 65 years and over

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Median household income of Michigan is

$49,576

Median household income of Los Angeles city, California is

$50,205

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey