QuickFacts

Population per square mile in California is

239.1

Population per square mile in Chicago city, Illinois is

11,841.8

21.6%

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

The population of New York is

19,745,289

22.3%

of persons in New York are under 18 years

Median household income of Maricopa County, Arizona is

$54,229

The population of New York is

19,745,289

The population of Illinois is

12,801,539

The population of Florida is

20,612,439

11.4%

of persons in San Diego County, California are 65 years and over

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census