Mark Zuckerberg, with a net worth of $222 billion, ranks among the wealthiest people in the world—and his fortune is matched by a sprawling real estate portfolio that stretches across the United States and beyond.

The Meta CEO's latest acquisition, made in August, is a 440-acre estate in Ireland's County Waterford that comes with a 196-year-old castle. The purchase reportedly set him back 51.17 million euros, or about $57.1 million.

Yet his priciest purchase came earlier this year, when Zuckerberg and his wife, Dr. Priscilla Chan, reportedly bought a luxury mansion on Florida's Indian Creek Island—near the in-progress home of Amazon founder Jeff Bezos.

A $170 Million Deal on Indian Creek Island

Indian Creek Island is a 300-acre, man-made island near Miami and Miami Beach that contains just 41 lots and approximately 84 residents, according to the Wall Street Journal. Home prices on the island start at about $60 million, and records show the billionaire paid $170 million for his waterfront home, which has nine bedrooms and 11 full bathrooms, the Miami Herald reported. Miami-Dade County property records list the owner as a land trust—a legal vehicle long used in high-end real estate to hold title without publicly naming the beneficial owner.

Even undeveloped land on the exclusive island commands a premium: one vacant lot roughly the same size as Zuckerberg's sold for a reported $105 million in 2025, a figure that captures how tight the supply of buildable land is on an island with only 41 lots.

The property Zuckerberg reportedly purchased at 2 Indian Creek Island Road sits in the most coveted section of the already exclusive island, according to Mitchell Duchon, a Miami Beach–based real estate agent with the Corcoran Group who specializes in high-end waterfront properties. Lots on the island's western side, where Zuckerberg's home is reportedly located, measure about 80,000 square feet, compared with roughly 50,000 square feet on the eastern side, Duchon said. Residents on the western side—where Bezos also owns two lots—enjoy better access to the open water of Biscayne Bay and more expansive views with striking sunsets.

"That side of the island is perceived to be the most appealing," Duchon said.

Bezos Next Door

Bezos has been assembling properties on Indian Creek Island since announcing in 2023 that he was leaving Seattle for Florida. The Amazon founder's first purchase that year was a $68 million home that ended up just a few doors down from Zuckerberg's new residence. Near the end of 2023, he paid another $79 million for a neighboring property, with the intention of combining the lots into a single compound—a strategy Duchon said is increasingly common among wealthy buyers because of the scarcity of truly expansive waterfront properties in the area.

Bezos is reportedly living in a third, Mediterranean-style property on the island's east side, which he bought for $87 million in 2024. Last year, he sold one of his Seattle homes overlooking Lake Washington for a record $63 million, according to the Puget Sound Business Journal.

Life on Indian Creek Island

Indian Creek Island operates as an independent municipality with its own government and a private police force that patrols by land, water, and air. Access is controlled through a single gated bridge, making security and privacy defining features of the community. Much of the island's interior is occupied by an 18-hole golf course and the Indian Creek Country Club, whose membership is kept limited by a difficult admissions process and a $500,000 initiation fee.

Beyond Bezos, the island's high-profile residents include financier Carl Icahn and former NFL quarterback Tom Brady.

Billionaires Head South

Zuckerberg is among the latest billionaires to pick up a Florida property, a move that comes as California prepares to vote next week on a proposed ballot initiative that would impose a one-time 5% "billionaires tax" on any individual worth at least $1 billion, retroactive to Jan. 1, 2026. With the vote now just days away, its outcome will determine whether the retroactive levy moves forward at all—the next concrete marker in the debate accompanying this wave of relocations.

To be sure, Zuckerberg still very much calls California home: earlier this year, he invested $50 million through Meta in a Sacramento downtown revitalization and AI-focused project.

Google cofounder Larry Page, meanwhile, purchased a $71.9 million home in Miami's Coconut Grove neighborhood in January and plans to combine it with another property to form a $173 million waterfront compound.

Zuckerberg's Expanding U.S. Portfolio

Zuckerberg's reported newest property is the latest addition to the tech CEO's growing collection of luxury homes across the United States.

Palo Alto Compound

Zuckerberg's home base remains Palo Alto, California, where he owns 11 properties in the Crescent Park neighborhood, according to the New York Times. Over more than a decade, he has poured $110 million into buying adjacent properties, in some cases drawing complaints from his neighbors.

Hawaiian Estate

On the island of Kauai, about 100 miles northwest of Honolulu, Zuckerberg owns a $300 million property commonly known as Koʻolau Ranch, spanning roughly 1,400 acres. He quietly added about 1,000 additional acres to the compound last year, Architectural Digest reported, bringing his total Kauai holdings to more than 2,300 acres.

The ranch is one of Zuckerberg's most secretive properties. Nearly everyone who passes the compound's security, including builders and other workers, must sign nondisclosure agreements, Wired reported. The ranch reportedly includes a 5,000-square-foot underground shelter with its own energy source.

Lake Tahoe Retreat

Zuckerberg assembled his own mountain compound in the Lake Tahoe area by purchasing two adjacent estates in Tahoe City on the lake's West Shore. Set in the Sierra Nevada mountains between Nevada and California, Lake Tahoe has emerged as a popular retreat for billionaires—Google cofounder Sergey Brin and 2020 presidential candidate Tom Steyer both own homes there.

Zuckerberg bought the two properties—known as Carousel Estate and Brushwood Estate—for a combined $59 million, or $22 million and $37 million, respectively, according to multiple reports. The Brushwood Estate dates back to the early 1900s and has had only two other owners, according to SFGate. The property features six bedrooms, five full bathrooms, and a 2,293-square-foot guesthouse.

Washington, D.C., Mansion

As Meta and Zuckerberg have engaged more with policymakers in Washington during the Trump administration, the tech CEO reportedly picked up a $23 million mansion in the capital's exclusive Woodland-Normanstone neighborhood, Politico reported. The 15,000-square-foot mansion features brick and limestone walls and glass-enclosed "walkways."

A version of this story was published on Fortune.com on Feb. 12, 2026.