QuickFacts

The population of Maricopa County, Arizona is

4,167,947

Population per square mile in San Diego County, California is

735.8

Median household income of Los Angeles County, California is

$56,196

Population per square mile in Cook County, Illinois is

5,495.1

21.6%

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

10.3%

of persons in Texas are 65 years and over

12.9%

of persons in North Carolina are 65 years and over

In Maricopa County, Arizona

57.3%

of females 16 years+ are in the civilian labor force

26.4%

of persons in Maricopa County, Arizona are under 18 years

The population of Pennsylvania is

12,784,227

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates