QuickFacts

The population of Pennsylvania is

12,784,227

22.3%

of persons in New York are under 18 years

13.8%

of persons in Michigan are 65 years and over

Population per square mile in Chicago city, Illinois is

11,841.8

Population per square mile in Maricopa County, Arizona is

414.9

Population per square mile in Los Angeles County, California is

2,419.6

25.9%

of persons in Houston city, Texas are under 18 years

10.7%

of persons in Georgia are 65 years and over

22.3%

of persons in New York are under 18 years

In San Diego County, California

57.2%

of females 16 years+ are in the civilian labor force

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey