QuickFacts

22.0%

of persons in Pennsylvania are under 18 years

Population per square mile in Maricopa County, Arizona is

414.9

23.7%

of persons in Ohio are under 18 years

Population per square mile in New York is

411.2

24.5%

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

Population per square mile in Michigan is

174.8

The population of Michigan is

9,928,300

The population of Chicago city, Illinois is

2,720,546

Median household income of Philadelphia city, Pennsylvania is

$38,253

Population per square mile in New York is

411.2

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census