QuickFacts

11.4%

of persons in San Diego County, California are 65 years and over

Population per square mile in California is

239.1

21.3%

of persons in Florida are under 18 years

Population per square mile in Illinois is

231.1

Population per square mile in Houston city, Texas is

3,501.5

The population of Pennsylvania is

12,784,227

23.4%

of persons in San Diego County, California are under 18 years

Median household income of New York is

$59,269

25.9%

of persons in Houston city, Texas are under 18 years

The population of Philadelphia city, Pennsylvania is

1,567,442

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates