QuickFacts

25.0%

of persons in California are under 18 years

8.1%

of persons in Harris County, Texas are 65 years and over

Population per square mile in Pennsylvania is

283.9

The population of San Diego County, California is

3,299,521

Median household income of California is

$61,818

25.9%

of persons in Houston city, Texas are under 18 years

10.9%

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

Population per square mile in Michigan is

174.8

Population per square mile in Chicago city, Illinois is

11,841.8

Population per square mile in Cook County, Illinois is

5,495.1

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census