Marathon & Grassy Key, Florida Keys Airbnb revenue and occupancy data
What Airbnb listings in Marathon & Grassy Key earn, how often they're booked, and how that compares with the rest of Florida Keys, FL.
Over the past 12 months, regularly available listings in Marathon & Grassy Key earned $59,109 on average, were booked for 49% of the nights they were open, and averaged $677 a night. The median gross yield, before expenses, is 6.7%.
Yearly revenue
$59,109
Occupancy
49%
Nightly rate
$677
Gross yield
6.7%
before expenses
Median of 810 listings
Active listings
876
My take on Marathon & Grassy Key
For Marathon & Grassy Key, booked nights deserve a closer look than the near-market nightly rate might suggest. Rates average $677 locally versus $702 across the Florida Keys, while the booked share of available nights is 49% versus 53%.
Average trailing-year booking revenue also trails the market. A near-market nightly rate is not enough to support a market-level revenue estimate. Check how many nights comparable local listings actually offer and book before relying on that rate in a purchase analysis.
Commentary uses groups of at least 20 listings. Tables may include smaller groups.
How much do Airbnb hosts make in Marathon & Grassy Key?
Regularly available Airbnb listings in Marathon & Grassy Key earned an average of $59,109 over the past 12 months. That is 17% less than the Florida Keys, FL average of $71,383. That is booking revenue including cleaning fees, before Airbnb fees, operating costs and taxes.
What is the Airbnb occupancy rate in Marathon & Grassy Key?
Listings in Marathon & Grassy Key were booked for an average of 49% of the nights they were open for booking over the past 12 months. That is 4 points lower than the Florida Keys, FL average of 53%. Nights a host blocked off don't count.
How much does an Airbnb cost per night in Marathon & Grassy Key?
The average nightly rate in Marathon & Grassy Key was $677 over the past 12 months, including cleaning fees. That is 4% lower than the Florida Keys, FL average of $702.
Is an Airbnb in Marathon & Grassy Key profitable?
For homes with a matched home value, the median room-revenue potential in Marathon & Grassy Key is $74,093 a year and the median gross yield is 6.7%. Gross yield is 1.8 points lower than the Florida Keys, FL median. Gross yield is measured before expenses, financing and taxes, so profit depends on what you pay for a home and what it costs to run. Analyze the exact property before you buy.
Reveal any property's Airbnb profitabilityHow much do Airbnb hosts make in Marathon & Grassy Key by bedroom count?
One-bedroom homes have the highest gross yield in Marathon & Grassy Key, at 10.4%. The table shows average yearly revenue and median gross yield for each home size, with the Florida Keys, FL figure for the same size under each one.
| Bedrooms | Yearly revenue | Gross yield |
|---|---|---|
| Studio 8 listings | $42,871 Florida Keys, FL: $42,130 | – |
| 1 bedroom 65 listings | $27,185 Florida Keys, FL: $47,761 | 10.4% Florida Keys, FL: 11.7% |
| 2 bedrooms 162 listings | $34,474 Florida Keys, FL: $53,432 | 7.5% Florida Keys, FL: 8.5% |
| 3 bedrooms 305 listings | $51,557 Florida Keys, FL: $71,497 | 6.9% Florida Keys, FL: 7.8% |
| 4+ bedrooms 336 listings | $84,404 Florida Keys, FL: $128,026 | 5.5% Florida Keys, FL: 6.7% |
How does Marathon & Grassy Key compare with nearby areas?
Every row uses the same method and data date. Nearby areas link to their own pages.
| Area | Yearly revenue | Occupancy | Nightly rate | Gross yield |
|---|---|---|---|---|
| Marathon & Grassy Key This area 876 listings | $59,109 | 49% | $677 | 6.7% |
| Florida Keys, FL market 4,017 listings | $71,383 | 53% | $702 | 8.5% |
| Key Colony Beach 326 listings | $42,365 | 53% | $483 | 5.9% |
| Duck Key 93 listings | $56,948 | 49% | $513 | 9.2% |
| Big Pine Key 42 listings | $43,654 | 56% | $389 | 6.9% |
| Summerland, Cudjoe & Lower Keys 206 listings | $62,319 | 53% | $601 | 6.9% |
Where is Marathon & Grassy Key?
The Florida Keys, FL market includes 10 areas based on local neighborhood and city boundaries. Each listing is counted in the area containing it. Figures cover Marathon and Grassy Key together.
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About these figures
How is yearly revenue measured?
It is the average booking revenue a regularly available listing earned over the past 12 months, including cleaning fees and before Airbnb fees, operating costs and taxes. It is an estimate, not verified host payouts.
How is occupancy measured?
For each listing, BNBCalc divides the nights booked by the nights it was open for booking over the past 12 months, then averages the results. Nights a host blocked off are left out.
How is the nightly rate measured?
It is the average price per booked night over the past 12 months, including cleaning fees.
What is room-revenue potential?
It estimates what a listing would earn in a year from its nightly rates if it were available all year at its expected occupancy, based on its last 12 months of bookings. It excludes cleaning fees. It is an estimate, not income a host received.
What is gross yield?
For each listing, BNBCalc divides its room-revenue potential by an estimated value for a home with the same ZIP code and bedroom count, then reports the median. It is measured before expenses, financing and taxes, so it is not profit or a full return on investment.
Which listings are included?
Yearly revenue, occupancy and nightly rate cover listings of every type and size that were open for booking at least 127 nights over the past year (876 in Marathon & Grassy Key). Room-revenue potential and gross yield cover entire homes with one to five bedrooms that were also booked for at least 30% of their open nights and have a matched home value. BNBCalc shows no figure for an area with fewer than 5 qualifying listings.
How current is this data?
Figures are current as of November 3, 2026 and refresh monthly.
Why are these figures different from the Florida Keys, FL market page?
The market page summarizes all of Florida Keys, FL from a separate monthly market dataset. This page averages the individual listings in each area, so the two can differ. Use this page to compare areas with each other.
What can't these figures tell me?
They don't include operating costs, financing, taxes, insurance or the price of a specific home, and they don't show whether short-term rentals are allowed. Check local rules and analyze the exact property before you buy.
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Go deeper on Marathon & Grassy Key
With BNBCalc Markets, compare Marathon & Grassy Key by bedroom count and performance level, see home prices, and browse its listings on the map.