QuickFacts

28.0%

of persons in Harris County, Texas are under 18 years

Population per square mile in Michigan is

174.8

The population of Texas is

27,862,596

The population of Philadelphia city, Pennsylvania is

1,567,442

Population per square mile in Michigan is

174.8

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

8.1%

of persons in Harris County, Texas are 65 years and over

21.3%

of persons in Florida are under 18 years

24.5%

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

26.4%

of persons in Maricopa County, Arizona are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census