QuickFacts

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Population per square mile in Ohio is

282.3

Population per square mile in Pennsylvania is

283.9

15.4%

of persons in Pennsylvania are 65 years and over

23.1%

of persons in Los Angeles city, California are under 18 years

14.1%

of persons in Ohio are 65 years and over

23.9%

of persons in North Carolina are under 18 years

Population per square mile in Los Angeles city, California is

8,092.3

13.5%

of persons in New York are 65 years and over

Median household income of Cook County, Illinois is

$55,251

Source: 2010 Census

Source: American Community Survey