QuickFacts

Population per square mile in Pennsylvania is

283.9

Population per square mile in Florida is

350.6

12.9%

of persons in North Carolina are 65 years and over

Population per square mile in Ohio is

282.3

Population per square mile in San Diego County, California is

735.8

Median household income of Harris County, Texas is

$54,457

35.8%

of persons 25 years+ in Cook County, Illinois have a bachelor's degree or higher

22.0%

of persons in Pennsylvania are under 18 years

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

22.3%

of persons in New York are under 18 years

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census