COCO PLUM
Homes for Sale in Marathon, FL
True comps, carrying-cost math, and listings before the portals.
Market Heat
Coco Plum sits in Marathon, Monroe County, at a median sale price of $1,837,500 — a figure that reflects both the scarcity of Keys waterfront inventory and the sustained demand this stretch of the Middle Keys commands. The median home here was built in 1998 and runs just over 2,200 square feet of living space, meaning buyers are not paying luxury prices for legacy square footage alone; they are paying for land, water access, and location. Homes span a construction window from 1972 through 2024, so condition and build quality vary considerably — and that spread matters when you are evaluating any individual listing against the community median.
The market is moving. A median of roughly 24 days on market tells you that priced-right properties are not sitting, and a year-over-year price gain of 18.5 percent means sellers who held even a short position have seen meaningful movement. With just four closings in the recent window and 120 homes in the community, this is a thin-inventory market — a single outlier sale can shift the median noticeably. Buyers should calibrate expectations accordingly and not treat the median as a floor or ceiling for any specific property.
COCO PLUM right now
🟢 Still climbing. The trailing-12-month median ($1.84M) is up 18.5% from the prior 12 months ($1.55M) and up 425% since 2012. With about 3 sales a year, a single closing can swing this number, so read the level and the decade, not one year's move.Momentum Research, record-level floridakeys closed sales, 12-month windows ending July 27. Confidence: Low (4 and 3 sales in the two windows).
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Updated July 27, 2026 · Live data: floridakeys, refreshed twice daily · MLS facts carry their source; interpretation lines are Momentum Research · Data sources & freshness
The 60-Second Overview
COCO PLUM market snapshot (as of July 27, 2026): the median sale price is about $1.84M, and a median 25 days on market for closed sales. The trailing-12-month median is up 18% from the prior 12 months and up 425% since 2012, computed from record-level floridakeys closed sales (4 closings in the current window).
COCO PLUM is a community of 120 homes in Marathon, Monroe County, built between 1972 and 2024 (median 1998.0), with a median living area of about 2,212 square feet. 28% of parcels are homesteaded, the owner-occupancy proxy in the Florida DOR assessment roll (2025 roll, public records).
Coco Plum is a Monroe County community of approximately 120 homes in Marathon, where just over a quarter of owners carry a homestead exemption — a signal that a substantial portion of the housing stock functions as non-primary or investment property, which shapes both availability and pricing dynamics in ways that differ from a conventional primary-residence neighborhood.
Who COCO PLUM is best for.
Best for
- A buyer with a budget at or above the $1,837,500 median who is purchasing a Keys property for long-term use or as a deliberate non-primary holding, and who understands that condition variance across the stock requires careful due diligence on each listing.
- A second-home or investment-oriented buyer who is comfortable with a market where the majority of owners are not full-time residents and who does not require a deep pool of comparable sales to feel confident in pricing.
- A patient buyer who can move quickly when the right property appears — a 24-day median means well-positioned listings do not wait for deliberate, unprepared offers.
Probably not for
- A buyer whose ceiling is meaningfully below the community median — the single price data point here is $1,837,500, and there is no basis to assume entry-level availability at a significant discount.
- A buyer who needs high transaction volume and abundant recent comparables to underwrite a purchase with confidence; four closings in the recent window is a thin evidentiary base.
- A buyer expecting a traditional amenity-rich community experience — no community amenities are identified in current MLS data, so the value here is the property and its location, full stop.
Price History: What Homes Here Have Actually Sold For
Median sale price over the trailing 12 months ending July 27 of each year, from record-level floridakeys closed sales. Same methodology as every appreciation figure on this page: the 2026 point ($1.84M) IS the median in the snapshot above, and the move from 2025 ($1.55M) IS the +18.5% one-year change.
Windows contain 1 to 20 sales each (4 in the current window); every figure carries its sample size, and thin markets swing on single closings. Listing data provided by Florida Keys MLS, Inc. Information is deemed reliable but is not guaranteed by the MLS to be accurate. Deemed reliable but not guaranteed.
The real cost & risk here
Before the list price, the Florida math the portals skip. These are Monroe County typicals — your exact home, flood zone, and insurance quote will vary, so verify each before you offer.
Check it for your address: look up your flood zone (FEMA) · insurance by county · true-cost calculator · Monroe County scorecard.
County typicals from Momentum’s Florida housing data (Zillow & Realtor.com aggregates, Census, FRED), updated monthly; insurance modeled. Flood zone is property-specific — always confirm via FEMA.
The COCO PLUM buying strategy.
If we were buying in COCO PLUM today, this is the order of operations we would run for our clients.
Underwrite the condition first. Price the roof, HVAC, and systems honestly before judging any list price; condition swings value here more than square footage alone.
Match the home to real comps. Recent sales of similar condition and lot, not the asking price, tell you what a home is worth.
Move deliberately, not desperately. Neither side has a decisive edge, so a well-prepared, fairly-priced offer wins without overpaying.
Line up financing and inspection early. A pre-approval and an inspection plan let you act fast and negotiate from evidence.
Keep an agent in your corner. The listing agent works for the seller; we represent you and prepare a hand-built valuation before any offer in COCO PLUM.
What the numbers actually tell you about Coco Plum
The long-run price appreciation since 2012 — 425 percent — is striking, but it should be read as historical context rather than a forward projection. Monroe County Keys inventory is structurally constrained by geography, and Coco Plum's thin transaction volume means that appreciation figure reflects a market where supply cannot easily respond to demand. For a buyer, that same constraint cuts both ways: entry is expensive and competitive, but the illiquidity that makes this market move in large increments also means mispriced listings can correct sharply in either direction.
The homestead share of roughly 28 percent is a material data point. It indicates that the majority of homes are not owner-occupied primary residences, which affects everything from how sellers price and negotiate to how quickly listings come to market. A market heat score of 59 — moderate, not frenzied — suggests the pace is brisk but not irrational. With no community amenities identified in current MLS data, Coco Plum's value proposition is the location and the individual property itself, not a managed amenity package.
The location and the amenities are priced into every listing in COCO PLUM. The deal is won or lost on condition, the comps, and the renovation math.
Momentum Buy Score.
Our proprietary 0 to 10 read across the factors that decide how a home in COCO PLUM buys, holds, and resells. Momentum Research; not an appraisal.
Momentum Intelligence Scores are our proprietary, qualitative assessment on a 0 to 10 scale, built from the record-level market data on this page. They are a framework for comparing communities, not a guarantee of future value and not advice on a specific home; unlike an automated value estimate they do not price your home, they grade the community on evidence you can inspect. Composite is the plain average of the 4 factors (6.6). Basis: Long-Term Appreciation +425% since 2012; Recent Direction +18.5% year-over-year; Owner Commitment 28% owner-occupied; Pricing Power 90.4% sale-to-list. Refreshed with each data update.
Why work with Momentum here
In a thin-inventory market like Coco Plum — where a handful of closings sets the median and condition variance between homes is wide — generic market knowledge is not enough. Momentum's editorial and analytical process is built around grounding every recommendation in verifiable data, not rule-of-thumb assumptions. Whether you are a buyer trying to assess whether a specific listing justifies its premium over the community median, or a seller deciding how to position against a short recent-sales record, you need a broker who will tell you what the numbers actually support — and what they do not.
COCO PLUM in 15 seconds.
HOA, CDD & Fees
- Mandatory HOA — confirm current dues
- Any club/amenity membership is billed separately
Confirm the current HOA dues, exactly what they cover, and any CDD bond or special assessment for a specific address before you offer.
Tools for a COCO PLUM buy.
Free calculators to pressure-test the real cost before you tour.
Selling here is won on condition and pricing to real comps, not an automated estimate. The right number comes from closed COCO PLUM sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in COCO PLUM, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your COCO PLUM home worth?
Get a no-obligation home value based on real comparable sales in COCO PLUM, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.
See homes for sale in COCO PLUM on the map →
Frequently Asked Questions
What is the median home price in COCO PLUM?
How long do homes in COCO PLUM take to sell?
How many homes are in COCO PLUM?
What share of COCO PLUM is owner-occupied?
When were the homes in COCO PLUM built?
Do cash buyers compete in COCO PLUM?
Have COCO PLUM home prices gone up?
Who is the best real estate agent for COCO PLUM?
How do I find a top Marathon real estate agent who knows COCO PLUM?
Can Momentum Realty connect me with an agent for COCO PLUM?
Should you buy in COCO PLUM?
An honest fit check. We will tell you when it is not your community.
Data sources & freshness
| Community market stats | floridakeys closed sales, 12-month windows ending July 27, 2026 |
| Housing stock & ownership | Florida DOR 2025 assessment roll (street-list match (7 streets, ZIP 33050)) |
| Historical depth | Closed-sale records back to 2007 (148 transactions analyzed) |
Verify the primary sources yourself: Florida DOR · U.S. Census · FEMA flood maps · Citizens Property Insurance.
Momentum Research figures are our own analysis of floridakeys records; MLS data is deemed reliable but not guaranteed. Methodology: how Momentum market scores are computed. Market metrics describe homes for sale and recent sales, not residents.
Own a home here?
You just read the data. Now see what your home is worth.
The numbers on this page move markets in the aggregate. The number that matters to you is what a buyer pays for your address. Momentum sells for 1.25% above the floridakeys member average and 8 days faster, and we’ll price yours against live your area comps.
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