QuickFacts

Population per square mile in California is

239.1

Population per square mile in Cook County, Illinois is

5,495.1

Median household income of Cook County, Illinois is

$54,828

Median household income of Los Angeles County, California is

$55,870

Median household income of Philadelphia city, Pennsylvania is

$37,460

In Texas

57.9%

of females 16 years+ are in the civilian labor force

12.1%

of persons in Maricopa County, Arizona are 65 years and over

24.4%

of persons in Illinois are under 18 years

The population of Los Angeles County, California is

10,116,705

Population per square mile in Michigan is

174.8

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census