When buyers start searching for a home in the Florida Keys, they often fall in love with the water and contact an agent ready to buy "somewhere in the Keys." According to Sandy Tuttle, founder and owner of Island Welcome Real Estate, that vague starting point can lead to costly mismatches. Tuttle, who has 22 years of experience in the market, says the first question she asks every new buyer is not about budget or bedrooms but which part of the Keys they are looking for. The four main submarkets—Marathon, the Lower Keys, the Upper Keys, and Key West—are genuinely different places with different personalities, rules, and trade-offs.
For buyers focused on rental income, Marathon stands out. It is the only community in the Florida Keys that will issue a weekly vacation rental license to any home with no cap on total licenses. "If someone is investment-minded and wants a better income return, we are absolutely going to suggest we explore Marathon," Tuttle said. The ability to do weekly rentals changes the financial math significantly. The trade-off is atmosphere: Marathon sees higher visitor volume and more neighborhood turnover, which some buyers love and others avoid.
The Lower Keys, running from Big Pine Key to Key West's edge, offer old Keys character with less traffic. Monroe County requires a 30-day minimum rental term for most unincorporated areas, reducing constant short-term guest turnover. "In the Lower Keys, you almost do not know which houses are rentals," Tuttle said. Accessibility has improved with direct flights to Key West International Airport from Dallas, Charlotte, Atlanta, New York, Newark, and several Midwest cities. "Leave your home anywhere in the country in the morning," Tuttle said, "and you can be enjoying a Florida Keys sunset."
The Upper Keys, anchored by Key Largo, function as an extension of the Miami market. Proximity to Miami International Airport and Fort Lauderdale-Hollywood International makes it ideal for buyers seeking a quick getaway from South Florida. The trade-off is higher density and traffic, especially on weekends. The buyer profile here tends toward those wanting a short escape rather than permanent relocation.
Key West offers a mix of opportunities with rich culture, nightlife, and walkability. Properties with short-term rental licenses exist but are rarely available and command premium prices. The city does not issue new licenses, so existing ones are attached to properties and sold infrequently.
Tuttle runs a consistent set of questions with every buyer: What do you want daily life to look like? Are you focused on boating or walkability? Do you plan to generate rental income? The answers point clearly toward one submarket. "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." For buyers unsure where to start, exploring the different communities across the Florida Keys is a useful first step before connecting with a local expert.
This story matters because choosing the wrong submarket can result in a property that fails to meet expectations for income, lifestyle, or investment return. Understanding the distinct rules and character of each area is essential for making an informed decision in a market where properties often sell for premium prices and regulations vary significantly by location.
