QuickFacts

25.9%

of persons in Houston city, Texas are under 18 years

The population of Philadelphia city, Pennsylvania is

1,567,442

23.7%

of persons in Cook County, Illinois are under 18 years

Population per square mile in Texas is

96.3

Population per square mile in Pennsylvania is

283.9

The population of Michigan is

9,928,300

Population per square mile in Illinois is

231.1

24.5%

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

21.6%

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

27.3%

of persons in Texas are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census