QuickFacts

The population of Ohio is

11,614,373

The population of Cook County, Illinois is

5,238,216

26.4%

of persons in Maricopa County, Arizona are under 18 years

28.6%

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

Population per square mile in Los Angeles County, California is

2,419.6

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

24.4%

of persons in Illinois are under 18 years

The population of Georgia is

10,310,371

11.4%

of persons in San Diego County, California are 65 years and over

8.1%

of persons in Harris County, Texas are 65 years and over

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census