QuickFacts

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

The population of Illinois is

12,801,539

24.4%

of persons in Illinois are under 18 years

Median household income of Maricopa County, Arizona is

$54,229

Population per square mile in Houston city, Texas is

3,501.5

Population per square mile in Los Angeles County, California is

2,419.6

27.3%

of persons in Texas are under 18 years

The population of San Diego County, California is

3,299,521

Median household income of Florida is

$47,507

27.3%

of persons in 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: American Community Survey

Source: 2010 Census