QuickFacts

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Population per square mile in Maricopa County, Arizona is

414.9

Population per square mile in Ohio is

282.3

17.3%

of persons in Florida are 65 years and over

Population per square mile in Cook County, Illinois is

5,495.1

10.9%

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

The population of Maricopa County, Arizona is

4,087,191

Median household income of Florida is

$47,212

21.3%

of persons in Florida are under 18 years

Median household income of Los Angeles County, California is

$55,870

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey