QuickFacts

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

The population of Ohio is

11,614,373

Median household income of California is

$61,818

24.4%

of persons in Illinois are under 18 years

Population per square mile in Texas is

96.3

The population of Maricopa County, Arizona is

4,167,947

Population per square mile in Pennsylvania is

283.9

10.3%

of persons in Texas are 65 years and over

Population per square mile in Illinois is

231.1

22.0%

of persons in Pennsylvania are under 18 years

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census