QuickFacts

22.5%

of persons in Philadelphia city, Pennsylvania are under 18 years

8.1%

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

29.5%

of persons 25 years+ in Harris County, Texas have a bachelor's degree or higher

The population of Los Angeles County, California is

10,170,292

Population per square mile in North Carolina is

196.1

The population of Ohio is

11,614,373

The population of San Diego County, California is

3,299,521

23.4%

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

12.5%

of persons in Illinois are 65 years and over

Population per square mile in Pennsylvania is

283.9

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census