QuickFacts

26.4%

of persons in Maricopa County, Arizona are under 18 years

12.1%

of persons in New York city, New York are 65 years and over

The population of San Diego County, California is

3,299,521

Population per square mile in San Diego County, California is

735.8

9.0%

of persons in Houston city, Texas are 65 years and over

Population per square mile in Harris County, Texas is

2,402.4

Median household income of Illinois is

$57,574

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

The population of North Carolina is

10,146,788

28.0%

of persons in Harris County, Texas are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census