QuickFacts

Population per square mile in San Diego County, California is

735.8

Population per square mile in Harris County, Texas is

2,402.4

23.7%

of persons in Cook County, Illinois are under 18 years

The population of Los Angeles city, California is

3,971,883

The population of San Diego County, California is

3,299,521

The population of California is

39,250,017

28.0%

of persons in Harris County, Texas are under 18 years

22.3%

of persons in New York are under 18 years

Population per square mile in Cook County, Illinois is

5,495.1

Median household income of Cook County, Illinois is

$55,251

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey