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Key Colony Beach

Key Colony Beach is one of the most distinctive communities in the Florida Keys — a small, incorporated city on a man-made island just east of Marathon, designed in the 1950s as a planned waterfront community. With its tidy street grid, canal-front homes, rare sandy beach, golf course, and private airport, it offers a more structured, walkable alternative to the Keys’ more organic island towns. Built from the ground up for waterfront living, Key Colony Beach features uniform canals for easy dockage, compact neighborhoods, and a strong sense of community. Today, with just over 500 residents, it blends relaxed island living with the convenience and order of a thoughtfully designed coastal town. Real Estate in Key Colony Beach — Organized, Walkable, and On the Water

Key Colony Beach Real Estate & Waterfront Homes

Key Colony Beach is one of the most distinctive communities in the Florida Keys — a small, incorporated city on a man-made island just east of Marathon, designed in the 1950s as a planned waterfront community. With its tidy street grid, canal-front homes, rare sandy beach, golf course, and private airport, it offers a more structured, walkable alternative to the Keys’ more organic island towns. Built from the ground up for waterfront living, Key Colony Beach features uniform canals for easy dockage, compact neighborhoods, and a strong sense of community. Today, with just over 500 residents, it blends relaxed island living with the convenience and order of a thoughtfully designed coastal town. Real Estate in Key Colony Beach — Organized, Walkable, and On the Water

Property Listings

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Virtually every property in Key Colony Beach has canal frontage, and most feature private docks and covered boat lifts that provide direct ocean access through the Vaca Cut. The ability to walk from your front door to the town beach, walk to dinner or the golf course, and then walk back to your boat dock is a lifestyle equation that almost no other Florida Keys community can offer. Real estate here ranges from updated midcentury canal-front homes to newer elevated construction with modern finishes and panoramic water views. Because Key Colony Beach is a small, supply-constrained market, listings are infrequent and tend to move quickly when they appear. Working with an agent who is closely connected to this community is essential for buyers who want to be positioned when the right property becomes available.

 

Browse available Key Colony Beach homes for sale below and experience what it means to own a piece of one of the most thoughtfully designed waterfront communities in the entire Florida Keys.

Overview for Key Colony Beach, FL

525 people live in Key Colony Beach, where the median age is 66.1 and the average individual income is $65,101. Data provided by the U.S. Census Bureau.

525

Total Population

66.1 years

Median Age

High

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

$65,101

Average individual Income

Around Key Colony Beach, FL

There's plenty to do around Key Colony Beach, including shopping, dining, nightlife, parks, and more. Data provided by Walk Score and Yelp.

10
Car-Dependent
Walking Score
28
Somewhat Bikeable
Bike Score

Points of Interest

Explore popular things to do in the area, including Leopoldo La Verace, LJ’s Cafe, and La Chapina Restaurant.

Name Category Distance Reviews
Ratings by Yelp
Dining 0.83 miles 22 reviews 5/5 stars
Dining 1.2 miles 69 reviews 5/5 stars
Dining 0.84 miles 21 reviews 5/5 stars
Dining 0.84 miles 102 reviews 4.9/5 stars
Active 0.93 miles 19 reviews 5/5 stars
Active 3.7 miles 6 reviews 5/5 stars

Demographics and Employment Data for Key Colony Beach, FL

Key Colony Beach has 307 households, with an average household size of 1.71. Data provided by the U.S. Census Bureau. Here’s what the people living in Key Colony Beach do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau.

525

Total Population

High

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

66.1

Median Age

45 / 55%

Men vs Women

Population by Age Group

0-9:

0-9 Years

10-17:

10-17 Years

18-24:

18-24 Years

25-64:

25-64 Years

65-74:

65-74 Years

75+:

75+ Years

Education Level

  • Less Than 9th Grade
  • High School Degree
  • Associate Degree
  • Bachelor Degree
  • Graduate Degree
307

Total Households

1.71

Average Household Size

$65,101

Average individual Income

Households with Children

With Children:

Without Children:

Marital Status

Married
Single
Divorced
Separated

Blue vs White Collar Workers

Blue Collar:

White Collar:

Commute Time

0 to 14 Minutes
15 to 29 Minutes
30 to 59 Minutes
60+ Minutes
Key Colony Beach

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Discover the Florida Keys with a team that knows every sunset, shoreline, and neighborhood by heart. We’re more than real estate agents—we’re matchmakers, advocates, and lifelong partners in your journey. From dream homes to lasting friendships, we’re here to welcome you, guide you, and make paradise your home.

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