QuickFacts

26.4%

of persons in Maricopa County, Arizona are under 18 years

Population per square mile in Houston city, Texas is

3,501.5

The population of San Diego County, California is

3,299,521

22.3%

of persons in New York are under 18 years

The population of New York city, New York is

8,550,405

The population of Pennsylvania is

12,784,227

8.1%

of persons in Harris County, Texas are 65 years and over

Median household income of San Diego County, California is

$64,309

Median household income of Cook County, Illinois is

$55,251

The population of Georgia is

10,310,371

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates