QuickFacts

26.4%

of persons in Maricopa County, Arizona are under 18 years

Population per square mile in Chicago city, Illinois is

11,841.8

The population of Cook County, Illinois is

5,238,216

The population of Florida is

20,612,439

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

23.7%

of persons in Ohio are under 18 years

Population per square mile in California is

239.1

Population per square mile in Illinois is

231.1

In Houston city, Texas

59.9%

of females 16 years+ are in the civilian labor force

Median household income of Michigan is

$49,576

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey