Neighborhoods / Key Biscayne
An island villageKey Biscayne
An island municipality connected to the mainland by a single road, the Rickenbacker Causeway. Both ends of the island are parkland: the residential section is the middle, between Crandon Park and Bill Baggs Cape Florida State Park.
The character of the area
Key Biscayne is an island municipality connected to the mainland only by the Rickenbacker Causeway. That single connection is its most defining feature: everyone entering and leaving the island uses the same road, which produces both its calm and its constraint.
Both ends of the island are public parkland: Crandon Park to the north, Bill Baggs Cape Florida State Park to the south. Housing gathers in the middle section between them, so the buildable area is naturally limited and cannot expand.
The building stock ranges from low-rise houses to mid-scale buildings; Village Green is the center of public life at island scale. It is one of the Miami-Dade communities where family-scale demand concentrates most.
The island identity shows up concretely in daily life: much of the public open space sits in two large parks at either end, and both draw visitors from off the island as well. The village’s own neighborhood parks are spread through the middle section, so weekend crowds and everyday calm happen in separate parts of the same island.
Because everything enters and leaves by one road, transport decisions are part of the local agenda: the village runs a free on-demand service inside the island, and a bus route links the island to a transfer station in central Miami. For anyone considering a life without a car, those two lines are the practical options.
Schools are the island’s strongest draw: the village’s own school covers the elementary and middle grades inside the island and is the district’s designated home school for residents here. For the high-school grades there is a district-assigned school as well. On top of that, an agreement gives qualified village students limited priority admission at a maritime and science-themed magnet school — the item that makes this area unusual within Miami-Dade.
Worth knowing
The single road cuts both ways: it means fragility as much as calm. There is no alternative route during storm evacuations and road closures, and the island location directly affects insurance costs. The causeway toll is also a fixed item of daily travel — a permanent expense that belongs in the budget.
Verifiable facts
Facts we have been able to verify one by one for Key Biscayne; the source for each row is printed beside it.
The village’s own elementary and middle school is the Key Biscayne K-8 Center inside the island; the district designates it as the “home” school for residents here and it is the largest school within the village. Enrolment in the limited pre-kindergarten and Cambridge programmes is decided by lottery. For the high-school grades the district-assigned school is Coral Gables Senior High. MAST Academy on Virginia Key admits students by county-wide lottery, and the village holds an agreement granting qualified village students limited priority in its Cambridge programmes.
The village’s free on-demand service, Freebee, has been running on the island since late 2016 and is summoned through its app. On the county bus network, Route 26 runs between Brickell Station and Key Biscayne and covers stops on Virginia Key as well; the route offers increased service at school start and dismissal times.
The toll plazas on the Rickenbacker Causeway linking the island to the mainland are operated by the Miami-Dade Department of Transportation and Public Works; both SunPass and Toll By Plate payment are accepted. Rates are updated from time to time, and the latest change is announced on the county’s causeway page.
Source: Miami-Dade County — Rickenbacker and Venetian Causeways
Crandon Park at the northern end of the island belongs to Miami-Dade County; it holds a beach, golf course, tennis center, marina and nature center in one site. Entry is charged per vehicle, and glass containers and pets are not allowed inside the park, with the exception of service animals.
Source: Miami-Dade County — Crandon Park
Bill Baggs Cape Florida State Park at the southern end of the island is part of the Florida state parks system; the historic Cape Florida lighthouse stands inside the park and is listed on the National Register of Historic Places. Entry is charged per vehicle, and the lighthouse can be visited on guided tours.
Sales market in Key Biscayne
- Median sale price
- $1,682,500
- Median price per ft squared
- $999
- Recorded sales
- 246
Source: recorded sales from the Miami-Dade County Property Appraiser. Arm’s-length sales only; intra-family transfers, foreclosures and other non-market transactions are excluded. Scope: the municipal boundary of Key Biscayne · sales recorded between August 1, 2025 and August 1, 2026.
Neighborhood boundaries are approximated by ZIP code; parts of adjacent neighborhoods may share the same code. These figures describe recorded deed transfers, not current asking prices.
Year-over-year change is deliberately not published: in this dataset it measures the composition of what sold rather than price. We do not fill a figure we cannot measure with an estimate.
Key Biscayne in the news
Nearby neighborhoods
Areas that border Key Biscayne or share the same bayfront/boulevard line:
Frequently asked questions about Key Biscayne
- Can you live on the island without a car?
- Inside the island, yes: the village’s free on-demand service runs within its limits and the bus route links the island to a transfer station on the mainland. But for someone commuting to the mainland daily, the causeway toll, parking and total time stay as fixed cost items; that is why most households here keep a vehicle anyway.
- How much is the causeway toll?
- We do not quote the figure here, because rates are updated from time to time and the latest change was announced on the county page that operates the plazas. The more practical question is not the amount but the fact that it is a fixed item of daily travel: everyone entering and leaving the island passes the same plaza and there is no alternative route.
- Who owns the parks on the island?
- The two large parks are under different authorities: Crandon Park to the north belongs to the county and Bill Baggs Cape Florida to the south belongs to the state, and both charge per-vehicle entry and apply their own rules. The village’s neighborhood parks are run by the village itself. So “island park” does not mean one authority, but three separate operators.
- What are the school options?
- For the elementary and middle grades the island school is the district’s designated home school; for the high-school grades the district-assigned school is on the mainland. On top of that, the maritime and science-themed magnet school on Virginia Key admits students by county-wide lottery and the village holds a separate agreement granting village students limited priority. Because enrolment conditions change from time to time, we recommend confirming with the district.
- What price level should I expect?
- The market section on this page shows the island’s measured median and how many transactions it is based on. Because transaction volume at island scale is limited, the sample behind that median can stay narrow; a single large deal pulling the average up is expected in this area.
Let us see Key Biscayne in person.
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