QuickFacts

The population of San Diego County, California is

3,299,521

23.1%

of persons in Chicago city, Illinois are under 18 years

11.4%

of persons in California are 65 years and over

11.4%

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

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

In Cook County, Illinois

61.0%

of females 16 years+ are in the civilian labor force

21.6%

of persons in New York city, New York are under 18 years

8.1%

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

Population per square mile in San Diego County, California is

735.8

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