Home values, rents and more in Key Biscayne, FL
September 2026 figures from Zillow and the U.S. Census Bureau · updated 2026-11-07
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How Key Biscayne compares
The typical home in Key Biscayne, FL is worth about $1,726,000, according to the Zillow Home Value Index for September 2026. Home values in Key Biscayne are 3.6 times the typical value in the Miami metro area ($477,000) and 4.7 times the U.S. typical value ($366,000).
Over the past year, home values in Key Biscayne rose 7.7%, compared with +0.3% in the Miami metro area and +1.2% nationally.
Typical rent is $7,716 a month (Zillow Observed Rent Index), 2.9 times the Miami metro area ($2,654) and 4.0 times the U.S. ($1,932). Rents rose 8.7% over the past year.
The median household income is $181,505, against $76,527 in the Miami metro area and $80,734 in the U.S. (Census Bureau, American Community Survey 2020–24).
About 14,791 people live in Key Biscayne (American Community Survey 2020–24).
Key Biscayne has the 10th-highest typical home value of the 106 cities in the Miami metro area and the 13th-highest of 496 in Florida with Zillow figures.
Part of: Miami-Dade County, FL · Miami metro area · Florida
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- 5- and 10-year price changes
- Days on market and months of supply
- Price cuts and sale-to-list ratio
- Price-to-income and monthly cost to buy
- Crime rates
- Homeowners insurance premiums
- Commute time to downtown
- Flood, wildfire and natural hazard risk
- Property-tax rate
- 2024 presidential vote
- Age, education and household make-up
- Amenities and transit nearby
Nearby cities
ZIP codes in Key Biscayne, FL
Sources
Home values: Zillow Home Value Index (ZHVI), all homes, middle tier, smoothed and seasonally adjusted, September 2026. Rents: Zillow Observed Rent Index (ZORI), seasonally adjusted. Population: Census population estimates (July 2025) for states, metros and counties; ACS 2020–24 for cities and ZIP codes. Income: U.S. Census Bureau, ACS 2020–24 5-year estimates. Boundaries: U.S. Census Bureau cartographic boundary files. Compiled by Home Economics.
"Typical" is Zillow's middle-tier value (homes between the 35th and 65th percentiles), not a median sale price. Changes are over the 12 months to September 2026.