QuickFacts

Population per square mile in Los Angeles County, California is

2,419.6

24.5%

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

The population of Pennsylvania is

12,784,227

The population of California is

39,250,017

12.5%

of persons in Illinois are 65 years and over

17.3%

of persons in Florida are 65 years and over

In Maricopa County, Arizona

57.3%

of females 16 years+ are in the civilian labor force

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

24.4%

of persons in Illinois are under 18 years

Population per square mile in Ohio is

282.3

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census