QuickFacts

11.9%

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

25.0%

of persons in California are under 18 years

12.5%

of persons in Illinois are 65 years and over

25.7%

of persons in Georgia are under 18 years

23.4%

of persons in San Diego County, California are under 18 years

Population per square mile in Georgia is

168.4

The population of Harris County, Texas is

4,538,028

Median household income of Harris County, Texas is

$54,457

The population of Texas is

27,862,596

Population per square mile in Chicago city, Illinois is

11,841.8

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census