QuickFacts

Population per square mile in New York city, New York is

27,012.5

28.0%

of persons in Harris County, Texas are under 18 years

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

21.6%

of persons in New York city, New York are under 18 years

The population of San Diego County, California is

3,299,521

The population of Houston city, Texas is

2,296,224

28.0%

of persons in Harris County, Texas are under 18 years

The population of New York is

19,745,289

26.4%

of persons in Maricopa County, Arizona are under 18 years

The population of Los Angeles city, California is

3,971,883

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates