QuickFacts

26.4%

of persons in Maricopa County, Arizona are under 18 years

23.7%

of persons in Cook County, Illinois are under 18 years

14.1%

of persons in Ohio are 65 years and over

Population per square mile in Los Angeles city, California is

8,092.3

Median household income of Michigan is

$49,576

Population per square mile in Ohio is

282.3

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Median household income of Florida is

$47,507

Median household income of Harris County, Texas is

$54,457

The population of Philadelphia city, Pennsylvania is

1,567,442

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates