QuickFacts

The population of Los Angeles city, California is

3,971,883

Population per square mile in California is

239.1

Population per square mile in Chicago city, Illinois is

11,841.8

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

26.4%

of persons in Maricopa County, Arizona are under 18 years

11.4%

of persons in California are 65 years and over

The population of Pennsylvania is

12,784,227

In California

57.2%

of females 16 years+ are in the civilian labor force

Population per square mile in California is

239.1

8.1%

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

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census