QuickFacts

The population of Los Angeles County, California is

10,170,292

23.4%

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

The population of Florida is

20,612,439

The population of Illinois is

12,801,539

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

24.5%

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

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

17.3%

of persons in Florida are 65 years and over

The population of Maricopa County, Arizona is

4,167,947

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates