QuickFacts

The population of Cook County, Illinois is

5,238,216

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

27,012.5

The population of Harris County, Texas is

4,538,028

Population per square mile in Pennsylvania is

283.9

14.1%

of persons in Ohio are 65 years and over

Population per square mile in Maricopa County, Arizona is

414.9

Median household income of Florida is

$47,507

The population of Florida is

20,612,439

12.1%

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

25.0%

of persons in California are under 18 years

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census