QuickFacts

11.9%

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

25.0%

of persons in California are under 18 years

The population of Ohio is

11,614,373

8.1%

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

Median household income of Los Angeles County, California is

$56,196

30.4%

of persons 25 years+ in Maricopa County, Arizona have a bachelor's degree or higher

Population per square mile in Cook County, Illinois is

5,495.1

21.3%

of persons in Florida are under 18 years

23.4%

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

Population per square mile in North Carolina is

196.1

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census