This island off Miami is now America's most expensive ZIP code
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Miami Beach's Fisher Island (33109) was the priciest U.S. ZIP code in 2025, with a median sale price of $9.5 million, according to a PropertyShark analysis.
The big picture: Coastal communities continue to dominate the country's most expensive list, the real estate database found.
State of play: Atherton, California (94027), near San Francisco, where the typical home sold for $8.3 million, came in second after eight straight years at the top.
- Sagaponack, New York, in the Hamptons (11962), followed at $5.9 million.
- In all, California ZIPs made up 61% of the 120 ranked.
Between the lines: Fisher Island's beauty, isolation and closeness to downtown Miami make it an easy sell. Residents pay a $500,000 membership fee and nearly $40,000 for amenities, including pickleball and tennis courts, two deepwater marinas, a golf course, and a private primary school, the Tampa Bay Times reports.
- "You pretty much have your own oasis in the city," Jill Eber, a resident and luxury real estate broker, told the outlet.
Reality check: Even as coastal areas fetch the highest prices, climate change is reshaping high-risk markets, driving up insurance costs and pushing some homeowners away.
The fine print: Researchers looked at home sales that closed between January and September in states where purchase prices are public record.
- Only ZIPs that saw at least five sales were included in the analysis.
What we're watching: More wealthy homebuyers are flocking south. Last year marked the first time a Florida ZIP led PropertyShark's annual ranking.
- "The luxury market has expanded far beyond its traditional boundaries," said Redfin's head of economic research, Chen Zhao, in a recent report.
- "The priciest homes used to be more concentrated in a smaller number of East and West Coast metros. Today, high-end wealth is increasingly distributed across the Sun Belt."
