Key Biscayne is located in Florida. Key Biscayne, Florida has a population of 13,074. Key Biscayne is more family-centric than the surrounding county with 42.84% of the households containing married families with children. The county average for households married with children is 28.46%.
The median household income in Key Biscayne, Florida is $128,563. The median household income for the surrounding county is $46,338 compared to the national median of $57,652. The median age of people living in Key Biscayne is 42.8 years.
The average high temperature in July is 88.6 degrees, with an average low temperature in January of 61.7 degrees. The average rainfall is approximately 60.8 inches per year, with 0 inches of snow per year.