QuickFacts

Median household income of Illinois is

$57,574

Population per square mile in Cook County, Illinois is

5,495.1

Population per square mile in Los Angeles city, California is

8,092.3

Median household income of Harris County, Texas is

$54,457

23.1%

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

12.1%

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

Population per square mile in Pennsylvania is

283.9

9.0%

of persons in Houston city, Texas are 65 years and over