By: Keycrew.co
June 26, 2026
Lower Keys, Marathon, or Key Largo: The Differences That Actually Determine Where You Should Buy in the Florida Keys
Most buyers start their Florida Keys home search online. They browse listings, fall in love with the water, and contact an agent ready to buy somewhere in the Keys. The problem, according to Sandy Tuttle, is that “somewhere in the Keys” is not actually a useful starting point.
Tuttle is the founder/owner of Island Welcome Real Estate, a boutique real estate firm based in the Lower Florida Keys with 22 years in the market. She says the first question she asks every new buyer is not about budget or bedrooms. It is about which part of the Keys they are actually looking for – because the four main submarkets, the Lower Keys, Marathon, the Upper Keys, and Key West, are genuinely different places with different personalities, different rules, and different trade-offs.
Marathon: The Investment-Minded Buyer’s Starting PointIf rental income is a primary goal, Marathon should be the first place a buyer looks. The city of Marathon is the only community in the Florida Keys that will issue a weekly vacation rental license to any home, with no cap on the total number of licenses in circulation. That makes it meaningfully different from the rest of Monroe County.
“If someone is investment-minded and wants a better income return, we are absolutely going to suggest we explore Marathon,” Tuttle said. For buyers who want a second home that generates real income when they are not using it, the ability to do weekly rentals rather than monthly ones changes the math significantly.
The trade-off is atmosphere. Marathon has a higher volume of weekend visitors, more turnover in the neighborhood, and a more active environment than the Lower Keys. For some buyers, that is exactly what they want. For others, it is a reason to look elsewhere.
The Lower Keys: Old Keys Character With Less TrafficThe Lower Keys run from just south of the Seven Mile Bridge down to Key West, spanning roughly 32 miles from Big Pine Key to the city’s edge. Tuttle specializes in this stretch, and she describes it as the part of the Keys that still feels like the Keys used to feel.
Because Monroe County requires a 30-day minimum rental term for most unincorporated areas, the Lower Keys does not have the constant turnover of short-term rental guests cycling through neighborhoods. The rental clientele, when it exists at all, tends to be couples from the northeast staying for a month or two, not groups rotating in every weekend.
“In the Lower Keys, you almost do not know which houses are rentals,” Tuttle said. “Because the clientele is lovely – they come in and treat the home just like it is theirs.” For buyers who value that laid-back, residential feel and want to feel like they are actually living somewhere rather than visiting a tourist zone, the Lower Keys is the natural fit.
Accessibility has also improved considerably. The Key West International Airport now offers direct flights from Dallas, Charlotte, Atlanta, New York, Newark, and several Midwest cities. From anywhere in the Lower Keys, the airport is no more than 40 to 45 minutes by car or rideshare. “Leave your home anywhere in the country in the morning,” Tuttle said, “and you can be enjoying a Florida Keys sunset.”
The Upper Keys: Miami Proximity and Higher DensityKey Largo anchors the Upper Keys and is, in many ways, an extension of the Miami market. It is the first stop coming down from the mainland, which means it captures the highest volume of day-trippers, weekend visitors, and Miami-area buyers looking for a short escape.
For some buyers, the proximity to Miami International Airport and Fort Lauderdale-Hollywood International is exactly the draw. If a buyer is still working in South Florida or values easy access to major airports, the Upper Keys make more logistical sense. The trade-off is density and traffic. The Upper Keys sees far more vehicle volume than the rest of the Keys, and the weekend atmosphere reflects that.
The buyer profile for the Upper Keys tends to skew toward people who want a quick getaway from Miami – not necessarily buyers who are planning to relocate permanently or settle into a slower-paced island life.
Key West: The Opportunity MixKey West offers a beautiful mix of opportunities. Key West is not a boating community, it’s the Southernmost City in the USA – with rich culture, vibrant nightlife, restaurants & cafes, and of course world famous sunsets. There are properties with licenses for nightly and weekly rentals, although the City of Key West does not issue any new licenses. They are all out in the community and are attached to properties. They can be sold but rarely become available. Properties with short-term licenses will fetch a premium price. Key West is perfect for those seeking an exciting and charming tropical paradise with high walkability.
The Questions That Point You to the Right SubmarketTuttle runs through a consistent set of questions with every new buyer: What do you want your daily life to look like? Are you focused on boating, or do you want walkability to restaurants and entertainment? Do you have a boat, and if so, what kind? Are you hoping to generate rental income, or is this purely for personal use? Are you planning to retire here eventually, or is this a vacation and investment property for now?
The answers to those questions almost always point clearly toward one part of the Keys. A buyer who wants maximum rental income looks at Marathon first. A buyer who wants the laid-back island feel and a lower-traffic neighborhood looks at the Lower Keys. A buyer who wants Miami airport access and a weekend escape looks at the Upper Keys.
“It is not one size fits all,” Tuttle said. “Things vary quite a bit, and we have to focus on a case-by-case basis to really identify properties.” If you are trying to figure out where in the Keys makes sense for your situation, exploring the different communities across the Florida Keys is a useful first step, and then connecting with a local expert who knows each submarket from the inside is what makes the difference.
About Sandy Tuttle: Sandy Tuttle is the founder/owner of Island Welcome Real Estate, a boutique luxury waterfront real estate firm based in the Lower Florida Keys. With 22 years of experience in the Keys real estate market, Sandy specializes in waterfront and canal-front properties for buyers relocating from across the country.
This article is based on information provided by the expert source cited above. It is intended for general informational purposes only and does not constitute legal, financial, or real estate advice. Readers should conduct their own research and consult qualified professionals before making any real estate or financial decisions.
Disclosure: Individuals or companies mentioned may have a commercial relationship with KeyCrew.
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