QuickFacts

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Population per square mile in Maricopa County, Arizona is

414.9

14.1%

of persons in Ohio are 65 years and over

Population per square mile in Georgia is

168.4

Median household income of Cook County, Illinois is

$55,251

12.1%

of persons in Maricopa County, Arizona are 65 years and over

Population per square mile in Chicago city, Illinois is

11,841.8

28.0%

of persons in Harris County, Texas are under 18 years

The population of Texas is

27,862,596

24.4%

of persons in Illinois are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census