QuickFacts

21.3%

of persons in Florida are under 18 years

10.3%

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

11.4%

of persons in San Diego County, California are 65 years and over

Median household income of North Carolina is

$46,868

21.6%

of persons in New York city, New York are under 18 years

The population of Michigan is

9,928,300

Population per square mile in Harris County, Texas is

2,402.4

23.7%

of persons in Cook County, Illinois are under 18 years

Population per square mile in Texas is

96.3

15.4%

of persons in Pennsylvania are 65 years and over

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census