Shark Key
Homes for Sale in Monroe County, FL
True comps, carrying-cost math, and listings before the portals.
Market Heat
Over the 12 months ending 2026-09-20, 4 recorded sales closed at a median of $4,050,000, a median 81 days on market, sellers accepting 89% of original asking (-14% versus the prior year). At the median price and Monroe County's FY2025-26 rate of 8.816 mills, annual property tax runs about $35,700 ($35,360 with the full homestead exemption).
| Location | Shark Key, Monroe County, FL · ZIP 33040, 33042 |
|---|---|
| Homes in the community | 40 (FL DOR 2025 assessment roll) |
| Years built | 1989–2023 (median 2002.5) |
| Typical living area | 3,404 sq ft (median) |
| Sale prices, last 12 months | $4,050,000 median across 4 closed sales · -13.8% vs the prior 12 months |
| Days on market (closed sales) | 81 median |
| Owner-occupied (homestead) share | 23% |
Data as of September 20, 2026. Listing data provided by Florida Keys MLS, Inc. Information is deemed reliable but is not guaranteed by the MLS to be accurate; housing-stock figures from Florida Department of Revenue public records. Market figures describe homes, not residents. Cite as: Momentum Realty, “SHARK KEY key facts,” movewithmomentum.com/neighborhoods/shark-key, data as of September 20, 2026.
Shark Key right now
🔴 Off the recent peak. The trailing-12-month median ($4.05M) is down 13.8% from the prior 12 months ($4.70M). With about 4 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 Florida Keys MLS closed sales, 12-month windows ending September 20. Confidence: Low (4 and 4 sales in the two windows).
What's unique here: the median sale price is about 11x the typical Monroe County sale ($4.05M vs $378K, trailing 12 months, Florida Keys MLS records).
Jump to: Price history & scorecard · Homes for sale · Schools · FAQ
· Updated October 2, 2026 · Live data: Florida Keys MLS, refreshed twice daily · MLS facts carry their source; interpretation lines are Momentum Research · Data sources & freshness
Nearby homes for sale
No active listings inside SHARK KEY right now. These are the 6 closest homes on the market, by straight-line distance from the community's center; some may sit just outside its boundary.
Listing data from the MLS feeds named on each listing page; deemed reliable but not guaranteed. Refreshed nightly.
The 60-Second Overview
Shark Key market snapshot (as of September 20, 2026): the median sale price is about $4.05M, and a median 82 days on market for closed sales. The trailing-12-month median is down 14% from the prior 12 months, computed from record-level Florida Keys MLS closed sales (4 closings in the current window).
In ZIP 33040 (Shark Key), 309 homes closed in the last 12 months at a median of $908K, down 4.3% year over year, with a median 82 days on market. See the live ZIP 33040 housing market and the Monroe County market.
County records show 10 qualified sales in SHARK KEY across 2024–2025 (6 in 2024, 4 in 2025), median $4.70M — the last recorded sale per parcel on the Florida DOR 2025 assessment roll, independent of the MLS.
Shark Key is a community of 40 homes in Shark Key, Monroe County, built between 1989 and 2023 (median 2002.5), with a median living area of about 3,404 square feet. 23% of parcels are homesteaded, the owner-occupancy proxy in the Florida DOR assessment roll (2025 roll, public records).
Price History: What Homes Here Have Actually Sold For
Median sale price over the trailing 12 months ending September 20 of each year, from record-level Florida Keys MLS closed sales. Same methodology as every appreciation figure on this page: the 2026 point ($4.05M) IS the median in the snapshot above, and the move from 2025 ($4.70M) IS the -13.8% one-year change.
Windows contain 1 to 6 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.
15% of homes for sale in ZIP 33040 are already under contract (under contract ÷ under contract + active listings) — a read on how much of the available inventory buyers have already claimed. Source: MLS data (2026-09-20).
Housing distress & ownership in SHARK KEY, Shark Key
Who owns here, how much is not owner-occupied, and how much for-sale inventory is under distress.
Source: Momentum Realty Research. Ownership & parcels from the FL DOR 2025 tax roll; distress from MLS active-listing status/remarks; price from MLS closed sales. 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 Shark Key buying strategy.
If we were buying in Shark Key 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 Shark Key.
A closer look at the Shark Key market
Homes in Shark Key trade around a median of $4.05M, where condition and lot do more to set the final number than the asking price does.
The trailing-12-month median down 14% year over year. Homes that do trade take a median 82 days on market, useful leverage on any listing that has lingered.
The housing stock is 40 homes built between 1989 and 2023, and 23% of parcels are homesteaded — the owner-occupancy proxy in the Florida DOR assessment roll.
The location and the amenities are priced into every listing in Shark Key. 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 Shark Key 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 3 factors (2.5). Basis: Recent Direction -13.8% year-over-year; Owner Commitment 23% owner-occupied; Pricing Power 89.2% sale-to-list. Refreshed with each data update.
HOA, CDD & Fees
- HOA status not on record. Verify any dues before you offer
- 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 Shark Key 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 Shark Key sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in Shark Key, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your Shark Key home worth?
Get a no-obligation home value based on real comparable sales in Shark Key, 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 Shark Key on the map →
Frequently Asked Questions
What is the median home price in Shark Key?
How long do homes in Shark Key take to sell?
How many homes are in Shark Key?
What share of Shark Key is owner-occupied?
When were the homes in Shark Key built?
Who is the best real estate agent for Shark Key?
How do I find a top Shark Key real estate agent who knows Shark Key?
Can Momentum Realty connect me with an agent for Shark Key?
Where is Shark Key, and what county is it in?
Data sources & freshness
| Community market stats | Florida Keys MLS closed sales, 12-month windows ending September 20, 2026 |
| Housing stock & ownership | Florida DOR assessment roll (street-list match (3 streets, ZIP 33040/33042)) |
| Under-contract shares | Florida Keys MLS records, as of 2026-09-20 |
| Historical depth | Closed-sale records back to 2000 (87 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 Florida Keys MLS 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 Florida Keys MLS member average and 8 days faster, and we’ll price yours against live local comps.
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See how SHARK KEY fits the bigger picture — live prices, inventory, and Momentum Scores:
More on Shark Key
- Home values · What homes in Shark Key actually sell for
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