QuickFacts

12.1%

of persons in Maricopa County, Arizona are 65 years and over

25.9%

of persons in Houston city, Texas are under 18 years

Population per square mile in Ohio is

282.3

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

21.6%

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

23.1%

of persons in Chicago city, Illinois are under 18 years

Population per square mile in Maricopa County, Arizona is

414.9

The population of New York city, New York is

8,550,405

The population of North Carolina is

10,146,788

15.4%

of persons in Pennsylvania are 65 years and over

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census