The most expensive zip codes in the U.S.
In this DML Report…
PropertyShark's 10th annual report on the 100 most expensive U.S. ZIP codes, based on closed residential sales from January to September 2025 in disclosure states, shows Fisher Island in Miami Beach, Florida (ZIP 33109), claiming the top spot for the first time with a median sale price of $9.5 million, a 65 percent increase from $5.75 million in 2024. This 216-acre private island, accessible only by boat or helicopter and requiring Fisher Island Club membership, saw its cheapest sale at $1.41 million and top transactions including a $23.7 million three-bedroom condo and a $21 million six-bedroom single-family home. The shift displaced Atherton, California (94027), which held the No. 1 position for eight years and now ranks second at $8.33 million, up 5 percent, with sales ranging from $3.2 million to a record $51.5 million estate sold to tech CEO Stephen Luczo. California continues to dominate, occupying eight of the top 10 spots and 61 percent of the overall top 100, while a record 10 ZIP codes surpassed $5 million medians—twice as many as in 2024. Florida's ascent reflects post-2020 migration patterns from high-tax states like New York, bolstering South Florida's ultra-luxury segment.
The full top 10 list underscores coastal concentration, with all entries in California except for Florida's leader and two New York Hamptons enclaves: No. 3, Sagaponack (11962), New York, at $5.925 million, New York's priciest ZIP for the 10th straight year despite sluggish sales, highlighted by Vitamin Shoppe founder Jeffrey Horowitz's $89 million estate listing and a $25 million custom build by "Real Housewives of Beverly Hills" star Marisa Zanuck; No. 4, Newport Beach's Balboa Peninsula (92661), California, $5.721 million, up 20 percent; No. 5, Water Mill (11976), New York, $5.5 million, down 6 percent but more than double 2016 levels; No. 6, Montecito (93108), Santa Barbara, California, $5.24 million, up 4 percent and a decade-high; No. 7, Stinson Beach (94970), California, $5.225 million, up 38 percent in its second top-10 appearance; No. 8, Newport Coast (92657), Newport Beach, California, $5.188 million, up 10 percent; tied for No. 9, Los Altos (94022), California, $5.1 million, a new milestone, and Balboa Island (92662), Newport Beach, California, $5.1 million, up 10 percent; and No. 10, Rancho Santa Fe (92067), California, $4.995 million, up 10 percent. Newport Beach stands out as the only city with three top-10 ZIPs and all six residential codes in the top 100, cementing Orange County as the third-most-expensive overall. Methodology required at least five transactions per ZIP, excluding multi-parcel deals and non-disclosure states like Texas.
(read more below)
New York recorded its weakest performance in a decade, with just 15 ZIPs in the top 100—nine from the Hamptons in Suffolk County—and only three from New York City, all in Lower Manhattan showing price gains: Tribeca at $3.7 million median, second-priciest NYC neighborhood this spring and home to singer Sabrina Carpenter's $9.95 million duplex on Leonard Street; and two others covering SoHo, NoHo, Little Italy, Nolita, and Hudson Square at $2.6 million and $3.19 million medians. Connecticut surged with a record seven top-100 entries, overtaking Massachusetts, while the Bay Area slipped to 32 ZIPs from a 2019 peak of 55, and Los Angeles metro hit a high of 29. The report highlights sustained demand amid limited inventory in enclaves like these, with 15 states represented overall, mostly coastal or island locales, and ties expanding the list to 120 qualifying ZIPs.