QuickFacts

8.1%

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

Median household income of Maricopa County, Arizona is

$54,229

35.8%

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

The population of San Diego County, California is

3,299,521

The population of Illinois is

12,801,539

The population of New York city, New York is

8,550,405

21.3%

of persons in Florida are under 18 years

Population per square mile in Los Angeles city, California is

8,092.3

Population per square mile in North Carolina is

196.1

Population per square mile in Cook County, Illinois is

5,495.1

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census