QuickFacts

The population of Cook County, Illinois is

5,238,216

The population of Georgia is

10,310,371

The population of Philadelphia city, Pennsylvania is

1,567,442

The population of Texas is

27,862,596

Population per square mile in Maricopa County, Arizona is

414.9

28.0%

of persons in Harris County, Texas are under 18 years

8.1%

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

The population of Maricopa County, Arizona is

4,167,947

The population of Chicago city, Illinois is

2,720,546

Median household income of Cook County, Illinois is

$55,251

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey