QuickFacts

23.7%

of persons in Cook County, Illinois are under 18 years

12.5%

of persons in Illinois are 65 years and over

In Harris County, Texas

59.8%

of females 16 years+ are in the civilian labor force

Population per square mile in San Diego County, California is

735.8

The population of Harris County, Texas is

4,538,028

23.4%

of persons in San Diego County, California are under 18 years

23.9%

of persons in North Carolina are under 18 years

12.9%

of persons in North Carolina are 65 years and over

22.3%

of persons in New York are under 18 years

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census