QuickFacts

The population of Illinois is

12,801,539

The population of San Diego County, California is

3,299,521

9.0%

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

14.1%

of persons in Ohio are 65 years and over

The population of North Carolina is

10,146,788

Population per square mile in Los Angeles County, California is

2,419.6

22.0%

of persons in Pennsylvania are under 18 years

23.7%

of persons in Michigan are under 18 years

26.4%

of persons in Maricopa County, Arizona are under 18 years

Population per square mile in North Carolina is

196.1

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census