QuickFacts

23.7%

of persons in Michigan are under 18 years

The population of Texas is

27,862,596

Median household income of Cook County, Illinois is

$55,251

Population per square mile in San Diego County, California is

735.8

Population per square mile in Illinois is

231.1

Population per square mile in Florida is

350.6

23.7%

of persons in Cook County, Illinois are under 18 years

Population per square mile in Ohio is

282.3

11.4%

of persons in San Diego County, California are 65 years and over

The population of Philadelphia city, Pennsylvania is

1,567,442

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates