Key Biscayne

A quiet, laid-back island community with beautiful beaches and an outdoor lifestyle.

Overview for Key Biscayne, FL

12,955 people live in Key Biscayne, where the median age is 41 and the average individual income is $78,372.26. Data provided by the U.S. Census Bureau.


Total Population

41 years

Median Age


Population Density Population Density This is the number of people per square mile in a neighborhood.


Average individual Income

Welcome to Key Biscayne

Key Biscayne is a quaint island community with a population of approximately 13,000 and a total land area of approximately 1.25 square miles. Brickell, Downtown, Coral Gables, and Coconut Grove are just 20 minutes by car. The Miami International Airport is 15 miles away.

​​​​​​​The island is home to multimillion-dollar mansions, exclusive resorts, restaurants, boutiques and other luxury amenities. It has a casual yet elegant atmosphere where residents greet each other with a wave from their bicycles or a honk from their golf carts, which are the most popular mode of transportation.

Key Biscayne is known for its white sand beaches, state parks, and water activities like boating, swimming, kayaking, paddleboarding, wind surfing, and kite boarding. Popular attractions include the Key Biscayne Lighthouse, Key Biscayne Yacht Club, public beach access, Bill Baggs Cape Florida State Park, Crandon Park, and the historic Miami Seaquarium.

The northern part of Key Biscayne contains luxurious resort-style condominiums and waterfront mansions. Those looking for more traditional single-family homes will find a variety of options along the southern part of the island. Prominent architectural styles seen in Key Biscayne are Spanish, Mediterranean, modern, contemporary, and old Florida. Views from almost anywhere on the island are stunning and expansive. Homes range from 1,400 square feet to over 10,000 square feet with a median value of $1.5 million.

Key Biscayne is known for its delicious seafood and upscale restaurants including Lightkeepers, an oceanfront dining experience in the Ritz Carlton Hotel, KeBo Restaurant, an authentic Mediterranean-Spanish eatery that serves a wide selection of fresh seafood and authentic Spanish dishes, Artisan Kitchen and Bar, and Ristorante Forchetta. Other local favorites include Kazumi, Narbona, The Cleat, Dune Burgers, and Flour & Weirdoughs.


Miami Dade Public Schools serves more than 334,000 K-12 students and adult learners in the county, including the Key Biscayne community. The district is the fourth-largest in the nation and features A-rated traditional and charter schools. The schools offer comprehensive academic programs and extracurricular activities.

Key Biscayne K-8 Center
Key Biscayne Community Day School
St. Agnes Academy


Demographics and Employment Data for Key Biscayne, FL

Key Biscayne has 4,079 households, with an average household size of 3. Data provided by the U.S. Census Bureau. Here’s what the people living in Key Biscayne do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau. 12,955 people call Key Biscayne home. The population density is 7,230.32 and the largest age group is Data provided by the U.S. Census Bureau.


Total Population


Population Density Population Density This is the number of people per square mile in a neighborhood.


Median Age

48.52 / 51.48%

Men vs Women

Population by Age Group


0-9 Years


10-17 Years


18-24 Years


25-64 Years


65-74 Years


75+ Years

Education Level

  • Less Than 9th Grade
  • Associate Degree
  • Bachelor Degree

Total Households


Average Household Size


Average individual Income

Marital Status


Commute Time

0 to 14 Minutes
15 to 29 Minutes
30 to 59 Minutes
60+ Minutes

Schools in Key Biscayne, FL

All ()
Primary Schools ()
Middle Schools ()
High Schools ()
Mixed Schools ()
The following schools are within or nearby Key Biscayne. The rating and statistics can serve as a starting point to make baseline comparisons on the right schools for your family. Data provided by the U.S. Census Bureau.
School rating
Key Biscayne K-8 Center
PreK - 8th
Key Biscayne Presbyterian School
PreK - 1st
No rating available
PreK - 8th
No rating available
PreK - 5th
No rating available

Listings in the area


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