QuickFacts

The population of Chicago city, Illinois is

2,722,389

The population of Maricopa County, Arizona is

4,087,191

22.3%

of persons in New York are under 18 years

Population per square mile in Maricopa County, Arizona is

414.9

15.4%

of persons in Pennsylvania are 65 years and over

9.0%

of persons in Houston city, Texas are 65 years and over

Median household income of Harris County, Texas is

$53,822

The population of Illinois is

12,859,995

Population per square mile in Harris County, Texas is

2,402.4

11.9%

of persons in Cook County, Illinois are 65 years and over

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census