QuickFacts

Population per square mile in Chicago city, Illinois is

11,841.8

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

23.4%

of persons in San Diego County, California are under 18 years

Population per square mile in San Diego County, California is

735.8

28.4%

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

26.9%

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

Population per square mile in Ohio is

282.3

11.4%

of persons in California are 65 years and over

The population of Michigan is

9,928,300

10.3%

of persons in Texas are 65 years and over

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census