QuickFacts

22.0%

of persons in Pennsylvania are under 18 years

9.0%

of persons in Houston city, Texas are 65 years and over

12.5%

of persons in Illinois are 65 years and over

Population per square mile in Michigan is

174.8

Population per square mile in Houston city, Texas is

3,501.5

17.3%

of persons in Florida are 65 years and over

Population per square mile in Florida is

350.6

Population per square mile in Chicago city, Illinois is

11,841.8

Median household income of Houston city, Texas is

$45,728

11.4%

of persons in California are 65 years and over

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census