Cross the Rickenbacker Causeway from Miami, past the toll plaza and the long blue arc over Biscayne Bay, and the radio stays tuned to Spanish. So do the school pick-up lines, the tennis courts, the bakery queues and the Sunday Mass. The Cubans in Key Biscayne did not arrive here as refugees crowded into a tenement. Many arrived as doctors, lawyers, bankers and exiled businessmen, and they built one of the wealthiest Latin American enclaves in the United States on a four-mile barrier island that most of America has never heard of.
The Place
Key Biscayne is a barrier island south of Miami Beach, reachable only by the Rickenbacker Causeway, which opened in 1947 and first made large-scale settlement possible. The island is split in three: Crandon Park on the north, the incorporated Village of Key Biscayne in the middle, and Bill Baggs Cape Florida State Park on the south, where an 1825 lighthouse still stands as the oldest structure in Miami-Dade County.
The Village is small, roughly two square miles of land, with a population of around 15,000. The median household income runs well past $180,000, and many of the modest 1950s concrete homes now trade for several million dollars.
It is also overwhelmingly Hispanic. Roughly seven in ten residents identify as Hispanic or Latino, and Cubans are the single largest ancestry group on the island. On Key Biscayne, Spanish is not a heritage language spoken at home and forgotten outside. It is a working language of the village.
How It Became Cuban
The island that the Cubans inherited was first imagined by three brothers from a construction family. In 1950 the Mackle Company bought land on Key Biscayne and began building modest concrete-block houses, about 1,200 square feet, three bedrooms and a screened porch, aimed at returning World War II veterans with GI Bill financing and a $500 down payment.
A village built for veterans, settled by exiles
The homes sold fast. Within two months of opening in 1950, The Miami Herald reported 150 houses sold and the Mackles finishing five a day. Typical prices ran under $10,000. These were never meant to be mansions. They were starter homes on a tropical island, and they set the street grid that the Cuban community would later fill.
The Mackle brothers, Frank, Bob and Elliot, donated land for churches and the yacht club as they built. One of those gifts became St. Agnes parish, named for the patron saint of their mother. A parish hall went up in 1954, and about seventy-five families attended the dedication of the temporary church on Easter Sunday.
1959 and the golden exile
Everything changed in 1959. When Fidel Castro took power in Cuba, the first wave to leave was the wealthiest: professionals, landowners, bankers and business owners who had the most to lose and the means to go. Historians call them the golden exile, the emigration of largely upper and middle-class Cubans between 1959 and 1962. More than 200,000 had left for the United States by the autumn of 1962.
Most of that wave landed first in Little Havana and the working-class neighbourhoods of Miami, and many later spread to Hialeah. But the ones with capital, or the ones who rebuilt it quickly, looked for somewhere that felt like the Havana suburbs they had left behind: waterfront, professional, Catholic, exclusive. Key Biscayne fit.
St. Agnes registered the shift almost immediately. The parish history records that in 1959 it grew rapidly with the arrival of Cuban refugees, and a school was soon established. The pews filled with Spanish speakers, and the parish has counted parishioners from Latin America, the Caribbean and Spain ever since.
The Nixon years and the banker from Cuba
The island’s most famous resident in this period was not Cuban, but his closest friend was the son of Cuban immigrants. Charles “Bebe” Rebozo, the youngest of twelve children of a Cuban family, founded the Key Biscayne Bank and Trust in 1964 and became the confidant of President Richard Nixon.
Nixon bought waterfront homes on the island in 1969 to be near Rebozo, and the compound became known as the Florida White House. For a few years the small Cuban-flavoured village was wired into the centre of American power, a strange and brief overlap of presidential security details and Spanish-speaking neighbours.
From exiles to a second generation, and a self-governing village
By the 1980s the children of the golden exile were grown, professional and largely English-speaking, but they had not abandoned the island. They bought the old Mackle houses, tore down or expanded them, and raised families who moved fluidly between English and Spanish.
In 1991 the residents voted to incorporate as the Village of Key Biscayne, the first new municipality in Miami-Dade County in more than fifty years, after four decades of being governed by the county. Rafael Conte, a name that tells its own story, became the first mayor. The community that the Cubans had built now governed itself.
Later waves layered on top. Wealthy Argentinians, Venezuelans, Colombians and Spaniards bought in, drawn by the same things the Cubans had been drawn to. The island today is broadly Latin American, but it was the Cuban professional class that set the template and gave it the early density.
The Landmarks
St. Agnes Catholic Parish, 100 Harbor Drive. The spiritual heart of Cuban Key Biscayne. Founded on land donated by the Mackle brothers, it grew with the 1959 refugees and still offers daily Spanish Mass, with Sunday Spanish liturgies at 1pm and 7pm. The attached St. Agnes Academy traces its origin to 1973, when the pastor admitted a small group of seventh graders to classes in the back of the church.
Cape Florida Lighthouse, 1200 Crandon Boulevard. Built in 1825 at the southern tip of the island inside Bill Baggs Cape Florida State Park, it is the oldest standing structure in Miami-Dade County. For exiles who arrived by sea or air with nothing, the lighthouse became a fixed point, a piece of permanence on an island full of newcomers.
Crandon Park, north Key Biscayne. The county park that occupies the northern third of the island, with two miles of beach on Biscayne Bay. Its tennis centre, opened in 1994, hosted the Miami Open from 1987 until 2018 and turned the island into a global stage for a sport that the Latin American community follows closely.
The Square, 260 Crandon Boulevard. The open-air shopping centre that has anchored island commerce for more than forty years, with dozens of units of restaurants, salons, boutiques and professional offices. It is where the village does its errands, and where you are as likely to be served in Spanish as in English.
Village Green Park, Crandon Boulevard. The civic lawn at the centre of the Village, near the Galleria retail centre and the heart of the incorporated municipality. It hosts the Fourth of July parade and the community gatherings that knit a small island together across its languages.
Key Biscayne K-8 Center, 150 West McIntyre Street. The public school where the island’s children, the great majority of them Hispanic, are educated together. Its reading and maths proficiency scores sit far above the Florida average, a reflection of the professional families who fill its classrooms.
Oasis Café, 19 Harbor Drive. For more than forty-five years the wooden-walled counter served Cuban coffee and Latin American comfort food from six in the morning, drawing hundreds of residents and workers daily. It closed in recent years, but for two generations it was the unofficial living room of Cuban Key Biscayne.
Where They Came From
The first Cubans on Key Biscayne came overwhelmingly from Havana and its prosperous suburbs: Vedado, Miramar, the professional and business districts where doctors, lawyers, sugar men and bankers had lived before 1959. They were the urban Cuban elite, the people the revolution targeted first and who left earliest.
That origin shaped the enclave. These were not rural migrants chain-migrating from a single village, the pattern of so many American immigrant neighbourhoods. They were a displaced professional class reassembling itself, and they chose an island that let them recreate the waterfront, club-and-parish life they had known in Havana.
Their wealth, education and, for the earliest arrivals, the welcome extended to Cold War refugees gave them a head start that few immigrant groups receive. Within a generation the children were doctors and lawyers in their own right, and the Cuban story on Key Biscayne became less about exile than about belonging.
Key Biscayne Today
Key Biscayne is now one of the most expensive places to live in Florida, and one of the most Latin. The old Mackle veterans’ cottages are mostly gone or unrecognisable, replaced by glass-walled houses and luxury condominiums. Spanish remains the everyday language of the village, but it is the Spanish of an affluent, trilingual, internationally mobile population rather than of recent arrivals.
The Cuban founding generation is largely gone now, and their grandchildren share the island with newer money from across Latin America: Venezuelans who fled their own collapse, as they did in nearby Doral, alongside Argentinians, Colombians and Spaniards. The result is a place that is unmistakably Hispanic without being defined by any single nationality.
What endures is the original choice. The professionals who left Havana wanted a quiet, prosperous, Catholic island within sight of a great city, a place to raise children and rebuild a life. Three generations on, that is exactly what Key Biscayne still is, and the Cuban exiles who first imagined it that way left the deepest mark.
Frequently Asked Questions
How many Cubans live in Key Biscayne, Florida?
Cubans are the single largest ancestry group on the island, with around one in ten residents claiming Cuban ancestry and roughly 70 percent of the village’s 15,000 residents identifying as Hispanic or Latino. The Cubans in Key Biscayne form the historic core of a broader and very affluent Latin American community.
Why did Cubans settle in Key Biscayne?
After Fidel Castro took power in 1959, the wealthiest and most professional Cubans, the so-called golden exile, fled first. Those with capital sought a waterfront, Catholic, exclusive setting that resembled the Havana suburbs they had left, and Key Biscayne fit. The parish of St. Agnes recorded rapid growth from Cuban refugees that same year.
Is Key Biscayne an expensive place to live?
Yes. The median household income exceeds $180,000, and the original 1950s Mackle homes, once sold for under $10,000, now trade for several million dollars. It is among the most expensive municipalities in Florida.
What is the main Cuban or Catholic church in Key Biscayne?
St. Agnes Catholic Parish at 100 Harbor Drive is the spiritual centre of the Cubans in Key Biscayne. It grew with the 1959 refugee wave, runs St. Agnes Academy, and still celebrates daily Mass in Spanish.
What language do people speak in Key Biscayne?
Both English and Spanish are spoken everywhere on the island. Spanish functions as a genuine working language in shops, schools, churches and offices, reflecting the Cuban founding community and later arrivals from across Latin America.
How is Key Biscayne connected to Coral Gables and Miami?
Key Biscayne is linked to mainland Miami by the Rickenbacker Causeway, opened in 1947. The same professional Cuban exile class that settled the island also built the wealthy mainland enclave of nearby Coral Gables, and the two communities have long overlapped through family, business and parish ties.
If your family’s story passed through Key Biscayne, or any of the places Cubans have made home in America, Atlas of Home can trace that journey. From the emptied suburbs of Havana to a barrier island within sight of Miami, to wherever you are now.