QuickFacts

The population of Pennsylvania is

12,784,227

The population of Harris County, Texas is

4,538,028

The population of Maricopa County, Arizona is

4,167,947

Population per square mile in Pennsylvania is

283.9

Median household income of Los Angeles County, California is

$56,196

27.6%

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

Median household income of Los Angeles County, California is

$56,196

Population per square mile in San Diego County, California is

735.8

10.5%

of persons in Los Angeles city, California are 65 years and over

21.6%

of persons in New York city, New York are under 18 years

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census