Condos for Sale in Marathon, FL

36 condos are for sale in Marathon, FL as of 2026-09-06. The median list price is $590,000, most condos list between $398K to $975K, and the median listing has been on the market 68 days. 4 condos came on the market this week.

Newest condos for sale in Marathon

The most recently listed homes in Marathon, newest first, with photos. Each card opens the full listing with every photo, the community’s sales history and a tour request. Homes marked New listed in the last seven days.

$595,000 New

1 bd · 2 ba

10877 Overseas Highway #APT 112

Marathon

Listing courtesy of Lokation Real Estate

$445,000 New

1 bd · 1.5 ba

2000 Coco Plum Drive #503

Marathon

Listing courtesy of Key Colony Beach Realty

$379,000 New

1 bd · 1.5 ba

2000 Coco Plum Drive #302

Marathon

Listing courtesy of Florida Keys Real Estate Group

$409,999 New

1 bd · 1 ba

105 Avenue D #APT 113

Marathon

Listing courtesy of Island Welcome Real Estate LLC

$469,000

2 bd · 2 ba

389 N Anglers Drive #206

Marathon

Listing courtesy of Berkshire Hathaway HomeServices Keys Real Estate

$1.60M

3 bd · 2.5 ba

1515 Sombrero Boulevard #2B

Marathon

Listing courtesy of Coldwell Banker Schmitt Real Estate Co.

$550,000

1 bd · 1.5 ba

10877 Overseas Highway #APT 97

Marathon

Listing courtesy of Lokation Real Estate

$795,000

3 bd · 2 ba

6203 Gulf Of Mexico Boulevard #203

Marathon

Listing courtesy of Berkshire Hathaway HomeServices Keys Real Estate

$585,000

2 bd · 2.5 ba

12690 Overseas Highway #APT 52

Marathon

Listing courtesy of Florida Keys Real Estate Group

$820,000

3 bd · 2 ba

2000 Overseas Highway #4G

Marathon

Listing courtesy of Keller Williams Key West Compass Realty

$509,000

2 bd · 2 ba

9 Sombrero Boulevard #108

Marathon

Listing courtesy of Key Colony Beach Realty

$599,000

2 bd · 2 ba

107 Avenue D #APT 208

Marathon

Listing courtesy of LPT Realty, LLC

$729,000

2 bd · 2.5 ba

12690 Overseas Highway #413

Marathon

Listing courtesy of Coldwell Banker Schmitt Real Estate Co.

$645,000

1 bd · 2 ba

10877 Overseas Highway #111

Marathon

Listing courtesy of Engel & Völkers Marathon

$499,000

2 bd · 2 ba

1115 Sombrero Boulevard #102B

Marathon

Listing courtesy of Ocean Sotheby's International

$699,000

2 bd · 1.5 ba

307 Sombrero Boulevard #2

Marathon

Listing courtesy of Florida Keys Real Estate Group

$1.45M

2 bd · 2.5 ba

8401 Gulf Of Mexico Boulevard ##401

Marathon

Listing courtesy of Coldwell Banker Schmitt Real Estate Co.

$599,999

2 bd · 2 ba

2000 Coco Plum Drive #106

Marathon

Listing courtesy of eXp Realty LLC KW Branch

$365,000

1 ba

10877 Overseas Highway #APT 35

Marathon

Listing courtesy of Lokation Real Estate

$625,000

3 bd · 2 ba

1998 Overseas Highway #APT 24A

Marathon

Listing courtesy of Coldwell Banker Schmitt Real Estate Co.

$435,000

1 bd · 1 ba

105 Avenue D #111

Marathon

Listing courtesy of Engel & Völkers Marathon

$799,000

2 bd · 2 ba

12690 Overseas Highway #APT 310

Marathon

Listing courtesy of Coldwell Banker Schmitt Real Estate Co

$535,000

2 bd · 2 ba

9 Sombrero Boulevard #208

Marathon

Listing courtesy of Coldwell Banker Schmitt Real Estate Co

$684,000

2 bd · 2.5 ba

591 Sombrero Beach Road #APT 1B

Marathon

Listing courtesy of Florida Keys Real Estate Group

Marathon condos for sale by price

Every active listing in Marathon grouped by price, with the newest listings in each band. The median is $590,000; the busiest band is $500K – $750K.

$300K – $400K: 4 homes

• $379,000 · 1 bd / 1.5 ba · 2000 Coco Plum Drive #302
• $365,000 · 1 ba · 10877 Overseas Highway #APT 35
• $398,000 · 2 bd / 1 ba · 105 Avenue D #110
• $390,000 · 2 bd / 1 ba · 5301 Ocean Terrace #APT 7

$400K – $500K: 6 homes

• $445,000 · 1 bd / 1.5 ba · 2000 Coco Plum Drive #503
• $409,999 · 1 bd / 1 ba · 105 Avenue D #APT 113
• $469,000 · 2 bd / 2 ba · 389 N Anglers Drive #206
• $499,000 · 2 bd / 2 ba · 1115 Sombrero Boulevard #102B

$500K – $750K: 19 homes

• $595,000 · 1 bd / 2 ba · 10877 Overseas Highway #APT 112
• $550,000 · 1 bd / 1.5 ba · 10877 Overseas Highway #APT 97
• $585,000 · 2 bd / 2.5 ba · 12690 Overseas Highway #APT 52
• $509,000 · 2 bd / 2 ba · 9 Sombrero Boulevard #108

$750K – $1M: 4 homes

• $795,000 · 3 bd / 2 ba · 6203 Gulf Of Mexico Boulevard #203
• $820,000 · 3 bd / 2 ba · 2000 Overseas Highway #4G
• $799,000 · 2 bd / 2 ba · 12690 Overseas Highway #APT 310
• $975,000 · 3 bd / 2 ba · 6204 Gulf Of Mexico Boulevard #204

$1M and up: 3 homes

• $1.60M · 3 bd / 2.5 ba · 1515 Sombrero Boulevard #2B
• $1.45M · 2 bd / 2.5 ba · 8401 Gulf Of Mexico Boulevard ##401
• $1.09M · 3 bd / 3 ba · 2000 Coco Plum Drive #APT 1403

What a home in Marathon costs to own

Take the median $590,000 listing with 20% down at today’s 6.71% 30-year rate: principal and interest run about $3,049/month. Monroe County’s typical millage of 8.82 puts property tax near $4,761/year after the $50,000 homestead exemption — and that is the reset bill a buyer pays, not the seller’s capped one. Citizens’ average premium in Monroe County is about $4,380/year; newer roofs and inland addresses usually quote below it. All in, plan on roughly $3,811/month plus any HOA or CDD assessment.

Explore Marathon

• All condos for sale in Monroe County, FL
• Monroe County property tax guide
• Search every Marathon community
• All Florida cities and counties

Condos for sale near Marathon

• Condos for sale in Key Largo, FL — 263 listings
• Condos for sale in Key West, FL — 230 listings
• Condos for sale in Cudjoe Key, FL — 46 listings

Common questions

Listings, counts and prices are from Momentum Realty’s MLS record of active residential listings in Marathon as of 2026-09-06 and refresh as homes list and sell. Listing data provided by Florida Keys MLS, Inc. Information is deemed reliable but is not guaranteed by the MLS to be accurate. The data relating to real estate for sale on this page comes in part from the Internet Data Exchange (IDX) program of the MLS(s) named above; listings held by brokerages other than Momentum Realty are marked with the listing brokerage’s name. Information is deemed reliable but not guaranteed. Estimates are not guarantees. Equal Housing Opportunity.