QuickFacts

12.5%

of persons in Illinois are 65 years and over

13.8%

of persons in Michigan are 65 years and over

9.0%

of persons in Houston city, Texas are 65 years and over

10.9%

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

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

27,012.5

Population per square mile in Illinois is

231.1

24.4%

of persons in Illinois are under 18 years

Population per square mile in Illinois is

231.1

The population of San Diego County, California is

3,299,521

The population of Houston city, Texas is

2,296,224

Source: 2010 Census

Source: Population Estimates