QuickFacts

15.4%

of persons in Pennsylvania are 65 years and over

23.7%

of persons in Cook County, Illinois are under 18 years

23.7%

of persons in Cook County, Illinois are under 18 years

The population of Illinois is

12,801,539

25.7%

of persons in Georgia are under 18 years

The population of North Carolina is

10,146,788

12.9%

of persons in North Carolina are 65 years and over

Population per square mile in Los Angeles city, California is

8,092.3

Median household income of Philadelphia city, Pennsylvania is

$38,253

Population per square mile in Los Angeles County, California is

2,419.6

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census