Key Biscayne is located in Florida. Key Biscayne, Florida has a population of 13,615. Key Biscayne is more family-centric than the surrounding county with 40% households with children. The county percentage for households with children is 29%.
The median household income in Key Biscayne, Florida is $154,413. The median household income for the surrounding county is $53,563 compared to the national median of $61,963. The median age of people living in Key Biscayne is 44.7 years.
The average high temperature in July is 87 degrees, with an average low temperature in January of 62.6 degrees. The annual precipitation is 46.6.