QuickFacts

26.4%

of persons in Maricopa County, Arizona are under 18 years

12.1%

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

The population of Illinois is

12,859,995

24.5%

of persons in Los Angeles County, California are under 18 years

28.0%

of persons in Harris County, Texas are under 18 years

30.0%

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

Population per square mile in Ohio is

282.3

35.1%

of persons 25 years+ in San Diego 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 New York city, New York is

27,012.5

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census