QuickFacts

Population per square mile in Maricopa County, Arizona is

414.9

The population of North Carolina is

10,042,802

14.1%

of persons in Ohio are 65 years and over

Population per square mile in Houston city, Texas is

3,501.5

Population per square mile in Houston city, Texas is

3,501.5

23.7%

of persons in Cook County, Illinois are under 18 years

Population per square mile in California is

239.1

The population of California is

39,144,818

11.4%

of persons in San Diego County, California are 65 years and over

11.4%

of persons in California are 65 years and over

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census