QuickFacts

The population of Illinois is

12,801,539

The population of Philadelphia city, Pennsylvania is

1,567,442

The population of Michigan is

9,928,300

22.0%

of persons in Pennsylvania are under 18 years

The population of San Diego County, California is

3,299,521

12.5%

of persons in Illinois are 65 years and over

Median household income of Texas is

$53,207

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

Population per square mile in Texas is

96.3

Median household income of Ohio is

$49,429

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey