QuickFacts

Population per square mile in Chicago city, Illinois is

11,841.8

24.4%

of persons in Illinois are under 18 years

Population per square mile in Pennsylvania is

283.9

25.9%

of persons in Houston city, Texas are under 18 years

13.5%

of persons in New York are 65 years and over

Median household income of Maricopa County, Arizona is

$54,229

12.1%

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

12.5%

of persons in Illinois are 65 years and over

The population of Harris County, Texas is

4,538,028

32.3%

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

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey