Island Town of Key Biscayne ( Miami - Dade County )
Key Biscayne is a beautiful island town located in Miami-Dade County, Florida, United States. It is situated on a barrier island that lies between the Atlantic Ocean and Biscayne Bay. The island is connected to the mainland by the Rickenbacker Causeway, which provides easy access to downtown Miami.
Key Biscayne is known for its stunning beaches, clear blue waters, and lush tropical landscapes. Some of the most popular beaches on the island include Crandon Park Beach, Bill Baggs Cape Florida State Park, and Key Biscayne Beach Club. These beaches offer a wide range of activities such as swimming, sunbathing, fishing, boating, and more.
Aside from the beaches, Key Biscayne also boasts of some of the most beautiful parks and nature reserves in the state of Florida. The Bill Baggs Cape Florida State Park, for example, is a popular destination for nature lovers, with its scenic trails, bird-watching areas, and wildlife habitats.
Key Biscayne is also home to many upscale restaurants, shops, and hotels. The town’s affluent residents and visitors enjoy a high standard of living and a range of amenities and activities to suit all tastes and interests.
Overall, Key Biscayne is a peaceful, scenic, and welcoming community that offers a relaxed, beachy lifestyle within close proximity to the bustling city of Miami.
Population:
- Population (2023): 14,414
- Median age (2022): 42.3
- Residents under 18: 31.4% (2023)
- Residents over 65: 15.5% (2023)
- Population by sex (2023): approximately 50% female and 50% male
- Homeowners and renters (2022): approximately 65% homeowners and 35% renters
- Married population ( 2023 ): 59%
- Population change (2010-2020): Appx. same
- Poverty rate compared to the US national average (2022): 8.4% vs the average of 11.5%
Demographics (2022):
- White Hispanic – 32.9%
- White Non Hispanic – 21.8%
- Multiracial Hispanic – 39.7%
| Median Listing Home Price ( 10/25 ) | Median Home price per sq ft (10/25) | Median Home Sale Price (10/25) | Median Rent (12/25) | Home Price Change (‘19 -10/24) |
|---|---|---|---|---|
| 2M | 1.1K | 1.3M | $8,500 | N/A |
*Median prices shown are based only on activity for the dates specified
Income:
- Median household income (2022): $173,015
- Avg. per capita income (2022): $87,271
Tax:
- County property tax rate: 1.04% of a property’s assessed fair market value (2023)
- Combined state and county sales tax rate: 7% (2023)
Cost of Living:
- Average cost of living compared to the US national average (2023): Higher
- Cost of housing compared to the Florida average (2023): Significantly Higher
- Cost of food compared to the US national average (2023): 20.4% Higher
- Cost of healthcare compared to the US national average (2023): 4% Higher
- Cost of utilities compared to the US national average (2023): 4.2% Lower
- Cost of transportation compared to the US national average (2023): Higher
Political affiliation based on the 2024 election results ( Miami – Dade County ):
Republican – 55.19%
Democratic – 43.78%
Other – 1%
Largest 3 employers: Village of Key Biscayne, St. Agnes Academy, Key Biscayne Community School (source: Manta)
School ratings: A-rated schools (source: GreatSchools)
Coastal: Yes
Average low and high temperature: Low 22 degrees celsius, High 29 degrees celsius
Location and Amenities:
Highways:
- Interstate 95 (I-95): Approximately 3-5 miles west of Biscayne Bay.
- Florida’s Turnpike (SR 91): Approximately 10-15 miles west of Biscayne Bay.
International Airports:
- Miami International Airport (MIA): Approximately 9-11 miles southwest of Biscayne Bay. Travel time by car can range from 20 to 40 minutes, depending on traffic conditions.
- Fort Lauderdale-Hollywood International Airport (FLL): Approximately 25-30 miles north of Biscayne Bay. Travel time by car can range from 30 minutes to 1 hour, depending on traffic conditions.
Universities and Colleges:
- Florida International University (FIU): Approximately 10-15 miles west of Biscayne Bay.
- University of Miami: Approximately 8-10 miles south of Biscayne Bay.
Hospitals:
- Mount Sinai Medical Center: Approximately 7-10 miles south of Biscayne Bay.
- Jackson Memorial Hospital: Approximately 6-8 miles southwest of Biscayne Bay.
Shopping Malls:
- Aventura Mall: Approximately 7-10 miles north of Biscayne Bay.
- Brickell City Centre: Approximately 5-7 miles south of Biscayne Bay.
Major Cities:
Downtown Miami is approximately 7 miles away
Amenities:
- Key Biscayne Lighthouse, Bill Baggs Cape Florida State Park, Crandon Park, Key Biscayne Yacht Club, and various restaurants and shops.
Fun facts: Former US President Richard Nixon purchased a waterfront home in Key Biscayne which came to become known as the Florida White House. Rumour has it that plans for the Watergate break – in were conducted at Nixon’s Key Biscayne property.
Short Term Rental Regulations:
** All short term rental operations in Florida must obtain a business license from the Florida Department of Business and Professional Regulation ( DBPR ) and a Florida Department of Revenue Certificate of Sales and Use. ** Short term rental regulations can be subject to change and should always be confirmed with city / towns or county departments.
| County (Tourist / Transient) Tax | YES | 6% |
|---|---|---|
| City / Town Registration Fee | YES | |
| Property Inspection | YES | |
| Restrictions | YES | *see below |
Restrictions:
- Rental periods of less than 15 consecutive days are not permitted ( except by condominium rules and regulations; please verify )
- Sketch of evacuation exits must be posted within property
- Mandatory sex offender search required on guests
- Responsible party to reside on dwelling for more than 6 months
- Pls note some regulations can be subject to change as per area or condominium guidelines
For more information visit: keybiscayne.fl.gov

