QuickFacts

23.1%

of persons in Chicago city, Illinois are under 18 years

The population of Maricopa County, Arizona is

4,167,947

28.4%

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

25.0%

of persons in California are under 18 years

Population per square mile in Illinois is

231.1

10.3%

of persons in Texas are 65 years and over

Population per square mile in Harris County, Texas is

2,402.4

13.5%

of persons in New York are 65 years and over

23.7%

of persons in Michigan are under 18 years

25.0%

of persons in California are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census