An intriguing and whimsical island community in the Florida Keys.

Overview for Marathon, FL

9,622 people live in Marathon, where the median age is 48.9 and the average individual income is $44,489. Data provided by the U.S. Census Bureau.


Total Population

48.9 years

Median Age


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


Average individual Income

Welcome to Marathon

Located in the Middle Keys, Marathon is bustling with many stores and shopping centers. It’s widely considered to be the most marine-friendly city in the Florida Keys, with thousands of wet and dry boat storage options and major facilities to accommodate transient cruisers. Home to Bahia Honda State Park, Marathon contains some of the best beaches and snorkeling spots in the Florida Keys. Calusa Beach at Bahia Honda State Park is one of the best places to swim and sunbathe on the islands. From atop the Old Seven-Mile Bridge, you can see spotted eagle rays, sharks, and other marine life swimming out to sea. 
Residents of Marathon enjoy deep-sea fishing, boating, and scuba diving. Several marinas are located here, and many boat manufacturers operate in this part of the Florida Keys. Diverse businesses also call Marathon home. The city is one of the most active places in the Keys, and many residents enjoy visiting friends and family at this central location. Marathon always hosts events such as festivals, concerts, and farmers' markets. The community that makes up Marathon is supportive, positive, and friendly. This whimsical community attracts many families due to its peaceful yet bustling vibe. 

What to Love


Local Lifestyle - Living in Marathon

The atmosphere in Marathon is more traditional and quieter than in other parts of the Florida Keys. The fishing and boating industries have a significant presence in both Islamorada and Marathon. Marathon's real estate options allow residents to enjoy the natural beauty of the Keys while also having convenient access to commercial stores and retailers. The city of Marathon is a great place to enjoy being in the Middle Keys. Living in the Middle Keys enables residents to access the Upper and Lower Keys without traveling every mile of the overseas highway. Also, Marathon has many waterfront homes that offer some of the best views in the Florida Keys. And, of course, the cuisine in Marathon is absolutely crave-worthy!

Dining, Entertainment & Shopping in Marathon

When it comes to dining out, Marathon has many mouthwatering options. Sparky’s Landing is a local favorite. They have plenty to choose from with their wood-fired shrimp and bacon pizza, West Coast fish tacos, steaks, salads, and of course, fresh seafood. Sunset Grill & Raw Bar is another great option that serves breakfast, lunch, and dinner. For a light and fresh breakfast, they have a delightful açai bowl, as well as heartier menu options such as breakfast wraps and steak and eggs. 
The lobster Reuben at Key’s Fisheries is fantastic, but if a home-cooked meal is what you’re after, Key’s is also a seafood market and wholesale fishery. For a great cup of coffee, Curley’s Coffee Company & Marina is a unique spot. Not only do they have a coffee kiosk to fulfill your coffee cravings, but they also do fishing charters and kayak and paddleboard rentals.

Things to Do in Marathon

Marathon is home to the 7 Mile Bridge Run, which has been held every spring for over 41 years. Marathon residents form a close and active community of people who love the outdoors and enjoy spending their time pursuing their hobbies and interests. Visit the Turtle Hospital for a fun tour that contributes to sea turtles' health, safety, and well-being.
The Original Marathon Seafood Festival is another annual event that’s a community favorite. It features excellent food and drinks served by many visiting and local vendors. For locals who prefer a more energetic vibe, dance away at Sunset Grill & Raw Bar, which hosts beach parties every Sunday.


Schools in Marathon are served by the Monroe County School District

Demographics and Employment Data for Marathon, FL

Marathon has 3,996 households, with an average household size of 2.4. Data provided by the U.S. Census Bureau. Here’s what the people living in Marathon do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau. 9,622 people call Marathon home. The population density is 1,139.19 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

52.23 / 47.77%

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

Households with Children

With Children:

Without Children:

Marital Status


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

Browse Properties & Homes in the Area

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