QuickFacts

12.9%

of persons in North Carolina are 65 years and over

8.1%

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

24.5%

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

23.1%

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

Population per square mile in Maricopa County, Arizona is

414.9

Population per square mile in Los Angeles city, California is

8,092.3

25.4%

of persons 25 years+ in Philadelphia city, Pennsylvania have a bachelor's degree or higher

Median household income of Philadelphia city, Pennsylvania is

$38,253

Median household income of Maricopa County, Arizona is

$54,229

The population of San Diego County, California is

3,299,521

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates