QuickFacts

14.1%

of persons in Ohio are 65 years and over

Population per square mile in Harris County, Texas is

2,402.4

Population per square mile in Philadelphia city, Pennsylvania is

11,379.5

Population per square mile in New York is

411.2

The population of Los Angeles County, California is

10,170,292

25.9%

of persons in Houston city, Texas are under 18 years

The population of Los Angeles city, California is

3,971,883

23.1%

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

11.4%

of persons in California are 65 years and over

The population of Maricopa County, Arizona is

4,167,947

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates