QuickFacts

23.1%

of persons in Los Angeles city, California are under 18 years

The population of Harris County, Texas is

4,538,028

13.5%

of persons in New York are 65 years and over

14.1%

of persons in Ohio are 65 years and over

Population per square mile in Maricopa County, Arizona is

414.9

12.5%

of persons in Illinois are 65 years and over

12.5%

of persons in Illinois are 65 years and over

23.7%

of persons in Ohio are under 18 years

25.9%

of persons in Houston city, Texas are under 18 years

9.0%

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

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census