Marathon Florida Homes for Sale

There are places where the water is part of the view. And then there's Duck Key, where it shapes the entire way of life. Set in the heart of the Florida Keys, this two-story waterfront residence brings together thoughtful living spaces, beautiful open-water scenery, and everything that makes island life so distinctive. The home offers four bedrooms and three bathrooms, surrounded by lush landscaping and designed to make the most of its waterfront setting. Outside, the property really comes into its own. A private pool, beach area, and dock put the water at the center of every day. And for boaters, the details matter: A 30,000-pound boat lift, a jet ski lift, a fish cleaning station, and steps leading right into the water. A morning offshore, an afternoon exploring the keys, or a quiet evening back at the pool. Here, those aren't special occasions. They're simply options. Upstairs, the open living kitchen areas are made for gathering, but the water remains the focal point with sliding glass doors that open to an expansive balcony that wraps around the upper level. The upper floor also includes the master bedroom with an ensuite bath, second bedroom and full bath in the hallway. Downstairs, a second living area, kitchenette, two additional bedrooms, and another full bathroom create a flexible layout for family and guests. From the lower level, step outside to the balcony, pool, beach and dock. Beyond the property, Duck Key has its own distinctive appeal. Join the optional Duck Key clubhouse for a pool, tennis, pickleball, and events, or Hawks Cay Resort for its Michelin-rated Salt and Ash restaurant, saltwater lagoon, Dolphin Connection, and pools.

422 Harbour Drive, Marathon

Listing courtesy of THE HIGH TIDE GROUP. 386-682-0992

$1,999,000

4 Beds ⋅ 3 Baths ⋅ NS1088280 MLS

Set within Coco Plum area of Marathon, this waterfront residence presents a rare opportunity to own a premier canal-front property in the Florida Keys. Offering direct boating access to open water, this home embodies the ultimate island lifestyle for the avid boater and coastal enthusiast. The property features a desirable waterfront setting, elevated construction, and an exceptional layout that provides the perfect bones to transform it into your dream home. With endless potential for customization, this residence is ideal for creating a modern coastal retreat or luxury Keys estate tailored to your vision. Located on a quiet, highly sought-after street, it offers both privacy and convenience, just minutes from beaches, dining, and all that Marathon has.

2100 Avenue H, Marathon

Listing courtesy of COLLADO REAL ESTATE. 386-427-0002

$1,590,000

4 Beds ⋅ 5 Baths ⋅ 226014558 MLS

Experience island living at its finest in this beautiful Florida Keys canal front home. This spacious four-bedroom, 4.5-bath property features a desirable layout where each bedroom offers its own private bathroom, providing comfort and privacy for family and guests. Step outside to your private pool overlooking the canal, perfect for relaxing after a day on the water or entertaining in true Keys style. The home is ideally suited for indoor-outdoor living, making it a dream getaway. Currently operating as a successful vacation rental, this property presents an excellent investment opportunity with strong income potential. Whether you’re looking for a second home, income-producing property, or both, this one checks all the boxes. Located in the beautiful Florida Keys, you’ll enjoy boating access, stunning sunsets, and the laid-back lifestyle everyone loves.

1021 82nd Street, Marathon

Courtesy of Premiere Plus Realty Company

Selling Office: .

$1,650,000

5 Beds ⋅ 5 Baths ⋅ 226012615 MLS

New Construction, walking distance from Sombrero Beach. This stunning new construction home offers the ultimate in luxury coastal living. Featuring 5 bedrooms and 5 full bathrooms, every bedroom includes its own private en-suite for maximum comfort and privacy. One bedroom and bathroom are conveniently located on the first floor, perfect for guests or easy accessibility. All main living areas are elevated above flood level, providing peace of mind while enjoying the island lifestyle. Step outside to your private tropical retreat with a beautiful pool, extensive lanai area, and a fully equipped outdoor kitchen, perfect for entertaining year round. Located in a very high performing vacation rental neighborhood, this property presents an incredible opportunity for both personal use and investment potential. Enjoy being just a short walk to Sombrero Beach in the beautiful Florida Keys.

518 Avenida Primiceria, Marathon

Courtesy of Premiere Plus Realty Company

Selling Office: .

$3,690,000

3 Beds ⋅ 3 Baths ⋅ W7882338 MLS

Stunning Furnished Coastal Modern 3-bedroom, 3-bath modern waterfront estate built by the Florida Keys' premier builder, D'Asign Source. This three-story solid concrete home offers exceptional design, craftsmanship, and strength, perfectly positioned on over a quarter acre with 110 feet of deep-water frontage along a 300-foot-wide canal. Boaters will love the 10,000 lb boat lift, 85 feet of dockage, and direct deep-water access to the Gulf and Atlantic. A fish cleaning station with water, bait freezer, and commercial ice machine make this property a dream for anglers and water enthusiasts. Inside, expansive glass doors and windows flood the living space with natural light and showcase panoramic canal views. The chef's kitchen features Viking appliances, quartz countertops, wine cooler, and premium finishes, while the open-concept design connects seamlessly to multiple balconies and outdoor living areas. The master suite includes an oversized rainfall shower and a private balcony overlooking the water, while two guest bedrooms provide bright, inviting retreats. Outdoor living is the heart of this home, featuring a custom 440 sq. ft. pool with hot tub and sunshelf, surrounded by soft sand, hammocks, and lush tropical landscaping. Entertain in style at the covered outdoor bar and grilling area, or unwind with sunsets from the private rooftop lounge overlooking the Gulf of Mexico. Additional features include four+ parking spaces, trailer parking, high-speed WiFi, multiple smart TVs, and a fully fenced yard that's pet-friendly. Tis property combines luxury, durability, and a true Keys lifestyle — offering modern design, deep-water access, and spectacular views in one of Marathon's most sought-after waterfront neighborhoods.

118 Avenue E, Marathon

Listing courtesy of RE/MAX ALLIANCE GROUP. 727-845-4321

$22,000,000

5 Beds ⋅ 9 Baths ⋅ 225002372 MLS

Immerse yourself in a tropical paradise where luxury knows no bounds. This breathtaking five-acre oceanfront estate, with 244 feet of private ocean frontage, is the crown jewel of the Florida Keys. From the moment you pass through the gates, you'll be captivated by a world of elegance, privacy, and unparalleled amenities. At the heart of this premier estate lies a resort-style pool oasis, complete with waterfalls, a waterslide, and a Tahitian-style river with private bedroom balconies offering entrance to the pool and leading to a swim-up tiki bar—perfect for lavish entertaining or tranquil escapes. The custom-designed 5,600+/- square foot main residence by D'Asign Source showcases exquisite craftsmanship and architectural brilliance. A separate 2,999 sq.ft. guest house offers a private retreat with its own kitchen, multiple bathrooms, and spacious living areas, ideal for hosting guests or staff. A private marina and boat ramp provide direct access to the world-famous waters of the Keys, with the bait shack nestled alongside for all things fishing and boating. Inside, every corner of this estate is designed to impress. A gourmet kitchen, opulent guest suites with private balconies offering entrance to the the lush poolscape, and a luxurious movie theater ensure every moment here is extraordinary. The primary en-suite dazzles with a stunning bathroom offering a retreat style sanctuary. Beyond the elegance, the estate is built with durability and functionality in mind, featuring impact-resistant windows and doors, generator, and cistern. Outside, explore expansive porches, a rain forest and fruit orchard, multiple garages, a carriage house, a tortoise habitat and even the potential for a private hangar. This estate isn't just a home; it's a lifestyle—your personal resort blending tropical serenity, architectural excellence, and unmatched prestige. Discover the ultimate in coastal living, where every day feels like an extraordinary getaway.

9300 Overseas Highway, Marathon

Courtesy of Coldwell Banker Schmitt RE CO

Selling Office: .

$1,550,000

4 Beds ⋅ 5 Baths ⋅ 223089240 MLS

Introducing an exquisite fairly new constructed home in Marathon, FL, boasting four bedrooms, 4.5 bathrooms, and breathtaking waterfront views. This luxurious property features an inviting pool, perfect for relaxation and entertainment. Embrace coastal living at it's finest, complete with a private dock, providing seamless access to the crystalline waters. With modern design elements and a prime location, this home offers the ultimate blend of comfort, style, and serene waterfront living. This is a great opportunity to have a beautiful modern home in the Keys and to generate income! Contact me today to schedule a private viewing and experience the charm of this beautiful property.

1037 82nd Street, Marathon

Courtesy of Premiere Plus Realty Company

Selling Office: .

$12,900,000

TB8362905 MLS

REDUCED......OVER 20 ACRE LAND AND MARINA ON OCEAN SIDE WITH FANTASTIC BUSINESS OPPORTUNITY IN MARATHON FL....Driftwood marina and storage has been in business for many years and now needs new owner to take over and replace the buildings and create new business venture and marinas and build ocean front resort hotel for visitors coming to Marathon.

13900 Overseas Hwy, Marathon

Listing courtesy of EQUITY REALTY SUNCOAST. 727-410-7064

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The data relating to real estate for sale on this web site comes in part from the Broker Reciprocity™ program of the Multiple Listing Service of Greater Cincinnati. Real estate listings held by brokerage firms other than our company are marked with the Broker Reciprocity™ logo (the small house as shown to the left) and detailed information about them includes the name of the listing brokers. This data is up-to-date as of . Copyright 2026, MLS of Greater Cincinnati, Inc. All rights reserved. Information deemed reliable but not guaranteed.

The data relating to real estate for sale on this website comes in part from the Broker Reciprocity program of the Dayton Area Board of Realtors® MLS IDX Database. Real estate listings from the Dayton Area Board of Realtors® MLS IDX Database held by brokerage firms other than Coldwell Banker Realty are marked with the IDX logo and are provided by the Dayton Area Board of Realtors® MLS IDX Database. Information is provided for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in. Copyright© 2026 Dayton Area Board of Realtors®

Marathon, Florida Homes for Sale & Real Estate

Marathon, Florida is a city of 10,039 residents (U.S. Census Bureau 2024 estimate) in Monroe County. As of October 2026, 4 homes are listed for sale in Marathon on our site, with a median list price of $4,095,000.

Marathon housing market (October 2026)

Homes for sale	4 active listings
Median list price	$4,095,000
New construction for sale	1 homes (see new builds)

Marathon at a glance

Population	10,039 (U.S. Census Bureau 2024 estimate)
County	Monroe County
ZIP codes	33050
Public schools	Monroe County school district (Florida has one public school district per county)

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Marathon ZIP codes

33050 - Monroe County

Marathon schools

Florida runs one public school district for each county, so public schools for Marathon homes are assigned by the Monroe County school district. Many Florida districts also offer school choice, so check the assigned schools on each listing and with the district.

New construction homes in Marathon

There is 1 new construction home listed for sale in Marathon right now. Browse Marathon new home construction for builder homes and newly built resales.

Marathon real estate FAQ

How much does a home cost in Marathon, Florida?

As of October 2026, the median list price of the 4 homes listed for sale in Marathon on our site is $4,095,000.

What county is Marathon, Florida in?

Marathon is in Monroe County.

What ZIP codes are in Marathon?

Marathon homes on our site use ZIP code 33050.

What school district is Marathon in?

Florida has one public school district per county, so Marathon is served by the Monroe County school district. Check the assigned schools on each listing.

Are there new construction homes in Marathon?

Yes. As of October 2026, 1 new construction home is listed for sale in Marathon on our site.

Ready to buy or sell in Marathon? Call or text eXp Realty at (239) 880-8850. Florida office: 10752 Deerwood Park Blvd, Suite 100, Jacksonville, FL 32256.

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Market statistics are calculated from MLS listings shown on this site (for-sale listings; rentals excluded) and are refreshed monthly; last updated October 2026. Closed-sale figures are omitted because the MLS feed for this area does not carry them. Population: U.S. Census Bureau Vintage 2024 estimates.