QuickFacts

Population per square mile in Houston city, Texas is

3,501.5

Population per square mile in Pennsylvania is

283.9

12.5%

of persons in Illinois are 65 years and over

27.3%

of persons in Texas are under 18 years

Population per square mile in Los Angeles County, California is

2,419.6

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

14.1%

of persons in Ohio are 65 years and over

Population per square mile in Chicago city, Illinois is

11,841.8

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

17.3%

of persons in Florida are 65 years and over

Source: 2010 Census