QuickFacts

Median household income of Illinois is

$57,574

12.1%

of persons in Maricopa County, Arizona are 65 years and over

Median household income of North Carolina is

$46,868

8.1%

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

21.3%

of persons in Florida are under 18 years

8.1%

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

25.7%

of persons in Georgia are under 18 years

Population per square mile in Harris County, Texas is

2,402.4

The population of Cook County, Illinois is

5,238,216

Population per square mile in San Diego County, California is

735.8

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census