QuickFacts

The population of Illinois is

12,801,539

The population of Harris County, Texas is

4,538,028

Population per square mile in Houston city, Texas is

3,501.5

The population of California is

39,250,017

The population of Ohio is

11,614,373

Median household income of Cook County, Illinois is

$55,251

Population per square mile in North Carolina is

196.1

23.1%

of persons in Chicago city, Illinois are under 18 years

10.5%

of persons in Los Angeles city, California are 65 years and over

Population per square mile in Maricopa County, Arizona is

414.9

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census