QuickFacts

17.3%

of persons in Florida are 65 years and over

Population per square mile in California is

239.1

Population per square mile in Cook County, Illinois is

5,495.1

The population of Philadelphia city, Pennsylvania is

1,567,442

Population per square mile in California is

239.1

Median household income of San Diego County, California is

$64,309

Median household income of Cook County, Illinois is

$55,251

The population of Philadelphia city, Pennsylvania is

1,567,442

28.0%

of persons in Harris County, Texas are under 18 years

The population of Houston city, Texas is

2,296,224

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates