Key Biscayne is a village in Miami-Dade County, Florida, home to about 14,791 people across 1.3 square miles. Its ZIP code is 33149.
Homes sold for a median of $994 per square foot in the three months ending August 2026, a balanced market.
Mostly Key Biscayne; also Miami
Each card is that ZIP code’s whole market, including any part outside Key Biscayne. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Key Biscayne’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Key Biscayne well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Miami International Airport (MIA)11 miles away |
|---|---|
| Nearest city of 250,000+ | Miami, FL6 miles away |
Straight-line distances from the center of Key Biscayne; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Key Biscayne had 14,809 residents in the 2020 census, up 41% since 2000.
It’s the 267th largest of 954 towns in Florida by population.
Source: U.S. Census Bureau decennial censuses.
Average highs peak around 91°F in summer, and winter lows average 63°F. About 55.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Cape Florida, FL weather station (about a mile away).
1,055,440 jobs at 98,394 businesses in Miami-Dade County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
74 doctors and other health care providers list an office in Key Biscayne.
Nearest hospitals
Providers with an office here
| Primary care doctors | 9 |
|---|---|
| Specialist doctors | 14 |
| Dentists | 8 |
| Nurse practitioners and physician assistants | 17 |
| Mental health providers | 19 |
| Physical and occupational therapists | 5 |
| Optometrists | 1 |
| Chiropractors | 1 |
| Pharmacies | 3 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1991.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Miami-Dade. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Key Biscayne K-8 CenterKey Biscayne | Pre-K–8 | 884 | Public | 0.3 mi |
| Mast AcademyKey Biscayne | 6–12 | 1,571 | Public | 3.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Key Biscayne Presbyterian SchoolKey Biscayne | Pre-K–1 | 20 | Presbyterian | 0.6 mi |
| St ChristophersKey Biscayne | Pre-K–5 | 66 | Episcopal | 0.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
Buying or selling around Key Biscayne? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Shares ZIP codes with Miami.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.