QuickFacts

The population of Illinois is

12,801,539

Population per square mile in Maricopa County, Arizona is

414.9

32.0%

of persons 25 years+ in Los Angeles city, California have a bachelor's degree or higher

Population per square mile in Illinois is

231.1

Population per square mile in Michigan is

174.8

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

The population of Pennsylvania is

12,784,227

28.0%

of persons in Harris County, Texas are under 18 years

10.3%

of persons in Chicago city, Illinois are 65 years and over

Population per square mile in Florida is

350.6

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census