QuickFacts

The population of Illinois is

12,859,995

The population of Cook County, Illinois is

5,246,456

8.1%

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

Median household income of Michigan is

$49,087

The population of San Diego County, California is

3,263,431

23.7%

of persons in Ohio are under 18 years

17.3%

of persons in Florida are 65 years and over

Median household income of Philadelphia city, Pennsylvania is

$37,460

Population per square mile in Los Angeles city, California is

8,092.3

23.4%

of persons in San Diego County, California are under 18 years

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census