QuickFacts

12.1%

of persons in Maricopa County, Arizona are 65 years and over

11.4%

of persons in California are 65 years and over

Population per square mile in Harris County, Texas is

2,402.4

The population of Los Angeles city, California is

3,971,883

The population of Maricopa County, Arizona is

4,167,947

23.1%

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

15.4%

of persons in Pennsylvania are 65 years and over

Median household income of Chicago city, Illinois is

$48,522

The population of Michigan is

9,928,300

The population of Harris County, Texas is

4,538,028

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates