QuickFacts

23.4%

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

Population per square mile in Cook County, Illinois is

5,495.1

15.4%

of persons in Pennsylvania are 65 years and over

Population per square mile in Michigan is

174.8

Median household income of San Diego County, California is

$64,309

Population per square mile in Los Angeles County, California is

2,419.6

21.6%

of persons in New York city, New York are under 18 years

Population per square mile in California is

239.1

Median household income of New York city, New York is

$53,373

Median household income of New York city, New York is

$53,373

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: American Community Survey