QuickFacts

The population of Illinois is

12,801,539

12.1%

of persons in New York city, New York are 65 years and over

Population per square mile in Maricopa County, Arizona is

414.9

Population per square mile in Harris County, Texas is

2,402.4

10.3%

of persons in Texas are 65 years and over

23.9%

of persons in North Carolina are under 18 years

12.9%

of persons in North Carolina are 65 years and over

The population of Ohio is

11,614,373

10.3%

of persons in Chicago city, Illinois are 65 years and over

23.7%

of persons in Michigan are under 18 years

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census