QuickFacts

Population per square mile in Houston city, Texas is

3,501.5

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

25.0%

of persons in California are under 18 years

The population of Florida is

20,612,439

The population of Los Angeles County, California is

10,170,292

In Maricopa County, Arizona

57.3%

of females 16 years+ are in the civilian labor force

8.1%

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

23.7%

of persons in Cook County, Illinois are under 18 years

23.9%

of persons in North Carolina are under 18 years

21.3%

of persons in Florida are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census