QuickFacts

12.5%

of persons in Illinois are 65 years and over

11.4%

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

Median household income of Cook County, Illinois is

$55,251

Population per square mile in Maricopa County, Arizona is

414.9

Population per square mile in Los Angeles city, California is

8,092.3

23.9%

of persons in North Carolina are under 18 years

The population of Michigan is

9,928,300

10.3%

of persons in Texas are 65 years and over

10.5%

of persons in Los Angeles city, California are 65 years and over

23.4%

of persons in San Diego County, California are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census