QuickFacts

23.1%

of persons in Chicago city, Illinois are under 18 years

28.0%

of persons in Harris County, Texas are under 18 years

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

23.7%

of persons in Ohio are under 18 years

The population of Cook County, Illinois is

5,238,216

Population per square mile in Harris County, Texas is

2,402.4

Median household income of San Diego County, California is

$64,309

35.8%

of persons 25 years+ in Cook County, Illinois have a bachelor's degree or higher

27.3%

of persons in Texas are under 18 years

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census