QuickFacts

The population of San Diego County, California is

3,299,521

Population per square mile in New York city, New York is

27,012.5

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Median household income of Pennsylvania is

$53,599

25.0%

of persons in California are under 18 years

28.0%

of persons in Harris County, Texas are under 18 years

13.8%

of persons in Michigan are 65 years and over

24.5%

of persons in Los Angeles County, California are under 18 years

Population per square mile in North Carolina is

196.1

26.4%

of persons in Maricopa County, Arizona are under 18 years

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census