QuickFacts

Population per square mile in New York city, New York is

27,012.5

22.0%

of persons in Pennsylvania are under 18 years

24.4%

of persons in Illinois are under 18 years

23.4%

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

Population per square mile in Los Angeles County, California is

2,419.6

Median household income of Cook County, Illinois is

$55,251

Population per square mile in Florida is

350.6

10.9%

of persons in Los Angeles County, California are 65 years and over

Median household income of Harris County, Texas is

$54,457

Median household income of Illinois is

$57,574

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey