QuickFacts

The population of Michigan is

9,928,300

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

15.4%

of persons in Pennsylvania are 65 years and over

Population per square mile in Houston city, Texas is

3,501.5

Population per square mile in California is

239.1

21.6%

of persons in New York city, New York are under 18 years

The population of Illinois is

12,801,539

13.5%

of persons in New York are 65 years and over

Population per square mile in California is

239.1

Population per square mile in Cook County, Illinois is

5,495.1

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census