QuickFacts

Population per square mile in Maricopa County, Arizona is

414.9

21.3%

of persons in Florida are under 18 years

15.4%

of persons in Pennsylvania are 65 years and over

10.3%

of persons in Texas are 65 years and over

Median household income of Los Angeles County, California is

$55,870

The population of Philadelphia city, Pennsylvania is

1,560,297

The population of San Diego County, California is

3,263,431

31.9%

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

Population per square mile in California is

239.1

Population per square mile in North Carolina is

196.1

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census