QuickFacts

The population of Pennsylvania is

12,784,227

Median household income of Houston city, Texas is

$46,187

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

10.9%

of persons in Los Angeles County, California are 65 years and over

25.0%

of persons in California are under 18 years

Population per square mile in Florida is

350.6

10.3%

of persons in Chicago city, Illinois are 65 years and over

The population of San Diego County, California is

3,299,521

The population of Maricopa County, Arizona is

4,167,947

12.5%

of persons in Illinois are 65 years and over

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census