QuickFacts

Population per square mile in Illinois is

231.1

Median household income of Harris County, Texas is

$54,457

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

The population of Cook County, Illinois is

5,238,216

25.7%

of persons in Georgia are under 18 years

The population of Maricopa County, Arizona is

4,167,947

12.9%

of persons in North Carolina are 65 years and over

The population of Los Angeles city, California is

3,971,883

Population per square mile in San Diego County, California is

735.8

Population per square mile in New York is

411.2

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census