QuickFacts

28.0%

of persons in Harris County, Texas are under 18 years

Population per square mile in Pennsylvania is

283.9

The population of Philadelphia city, Pennsylvania is

1,567,442

Population per square mile in Michigan is

174.8

Population per square mile in North Carolina is

196.1

Median household income of Maricopa County, Arizona is

$54,229

26.1%

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

11.9%

of persons in Cook County, Illinois are 65 years and over

The population of Illinois is

12,801,539

The population of Ohio is

11,614,373

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates