QuickFacts

23.4%

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

Population per square mile in New York is

411.2

17.3%

of persons in Florida are 65 years and over

Population per square mile in Harris County, Texas is

2,402.4

25.0%

of persons in California are under 18 years

13.8%

of persons in Michigan are 65 years and over

17.3%

of persons in Florida are 65 years and over

The population of Philadelphia city, Pennsylvania is

1,567,442

The population of Florida is

20,612,439

The population of New York city, New York is

8,550,405

Source: 2010 Census

Source: Population Estimates