QuickFacts

The population of Pennsylvania is

12,802,503

The population of California is

39,144,818

23.1%

of persons in Chicago city, Illinois are under 18 years

The population of Harris County, Texas is

4,441,370

The population of Maricopa County, Arizona is

4,087,191

Population per square mile in Illinois is

231.1

29.9%

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

25.9%

of persons in Houston city, Texas are under 18 years

Population per square mile in Florida is

350.6

30.0%

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

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey