QuickFacts

The population of Chicago city, Illinois is

2,720,546

The population of Illinois is

12,801,539

Median household income of Cook County, Illinois is

$55,251

Population per square mile in Chicago city, Illinois is

11,841.8

The population of Pennsylvania is

12,784,227

23.1%

of persons in Chicago city, Illinois are under 18 years

14.1%

of persons in Ohio are 65 years and over

Population per square mile in Pennsylvania is

283.9

The population of North Carolina is

10,146,788

In California

57.2%

of females 16 years+ are in the civilian labor force

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey