QuickFacts

11.9%

of persons in Cook County, Illinois are 65 years and over

The population of Illinois is

12,801,539

Population per square mile in Pennsylvania is

283.9

11.4%

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

23.1%

of persons in Los Angeles city, California are under 18 years

Population per square mile in Los Angeles County, California is

2,419.6

25.9%

of persons in Houston city, Texas are under 18 years

Median household income of Michigan is

$49,576

Population per square mile in Harris County, Texas is

2,402.4

Median household income of Chicago city, Illinois is

$48,522

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey