QuickFacts

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

11.4%

of persons in California are 65 years and over

11.4%

of persons in California are 65 years and over

In Cook County, Illinois

61.0%

of females 16 years+ are in the civilian labor force

11.4%

of persons in California are 65 years and over

Population per square mile in New York city, New York is

27,012.5

In Maricopa County, Arizona

57.3%

of females 16 years+ are in the civilian labor force

The population of San Diego County, California is

3,299,521

Population per square mile in California is

239.1

Population per square mile in New York is

411.2

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census