Five ZIP codes in Massachusetts have been named among the most expensive in the United States for 2025, according to a new report by PropertyShark. The annual ranking, which is based on closed home sales, shows that Boston's 02199 ZIP code in the Back Bay neighborhood leads the state with a median sale price of $2.57 million.
The report highlights a competitive high-end real estate market across the country, where the minimum median price to enter the top 100 list reached a new high of $2 million. While California continues to dominate the list, a Florida ZIP code claimed the top spot for the first time in the ranking's history.
Key Takeaways
- Five Massachusetts ZIP codes made the 2025 list of the 100 most expensive in the U.S.
- Boston's 02199 (Back Bay) is the state's priciest at $2.57 million, returning to the list after a one-year absence.
- Miami Beach's Fisher Island (33109) became the nation's most expensive ZIP code at $9.5 million, surpassing Atherton, California.
- The minimum median sale price to make the top 100 list increased to $2 million.
- Connecticut surpassed Massachusetts in the number of high-priced ZIP codes for the first time, with seven entries.
Massachusetts' High-Value Real Estate Markets
The 2025 PropertyShark report confirmed Massachusetts' position as a key player in the luxury housing market. Five distinct areas, ranging from urban centers to exclusive island communities, were included in the national top 100. This diverse representation underscores the varied appeal of high-end property within the state.
The analysis, now in its tenth year, is notable because it relies on actual closed-sale data rather than asking prices, providing a more accurate picture of where property transactions are occurring at the highest values.
The Five Priciest ZIP Codes in Massachusetts
The Massachusetts locations featured in the 2025 ranking reflect a mix of urban, suburban, and vacation destinations. Each area has unique market dynamics contributing to its high valuation.
- 02199 – Boston (Back Bay): With a median sale price of $2.57 million, this urban ZIP code returned to the list after falling off in 2024 due to low sales volume. This marks its seventh appearance in the last decade.
- 02554 – Nantucket: The island of Nantucket recorded a median sale price of $2.5 million. Despite its high ranking, this figure represents a 14% decrease compared to the previous year.
- 02535 – Chilmark (Martha's Vineyard): This Martha's Vineyard community reached a new record high with a median sale price of $2.48 million.
- 02493 – Weston: The affluent suburb of Weston also set a new price record, reaching a median of $2.39 million, indicating strong demand for luxury suburban homes.
- 02381 – Wellesley Hills: Another prominent suburb, Wellesley Hills, posted a median sale price of $2.25 million, just $50,000 shy of its all-time record.
A Shifting New England Landscape
While Massachusetts maintained a strong presence, the report revealed a shift in the New England luxury market. For the first time, Connecticut had more ZIP codes on the list than Massachusetts, with seven entries. This suggests a growing concentration of high-value real estate transactions in Connecticut's affluent communities.
National Real Estate Trends Show Major Shifts
On a national scale, the 2025 report revealed significant changes in the ultra-luxury market. The most notable development was Florida's rise to the top of the list. The Northeast, meanwhile, showed its weakest performance in a decade.
Florida Takes the Top Spot
For the first time, a Florida ZIP code, 33109 in Miami Beach (Fisher Island), was named the most expensive in the country. It recorded a staggering median sale price of $9.5 million, a 65% increase year-over-year. This dethroned the longtime leader, Atherton, California (94027), which had a median price of $8.33 million.
By the Numbers: The Ultra-Luxury Market
- $9.5 million: The median sale price in the nation's most expensive ZIP code (Miami Beach, FL).
- 10: The number of ZIP codes with a median sale price over $5 million, double the number from the previous year.
- 61%: The percentage of the top 100 most expensive ZIP codes located in California.
- 15: The total number of states represented in the top 100 list.
California's Continued Dominance
Despite losing the number one position, California remains the epicenter of high-end real estate in the United States. The state is home to 61 of the top 100 ZIP codes. Newport Beach was identified as the country's most expensive city, with all six of its ZIP codes making the list.
The San Francisco Bay Area, while still boasting 32 entries, continued a trend of market contraction. Los Angeles tied with Greenwich, Connecticut, as the second-most represented city, with four ZIP codes each.
The Top 10 Most Expensive ZIP Codes in the U.S.
The pinnacle of the U.S. real estate market is concentrated in a few key coastal and island locations. According to the 2025 PropertyShark report, ten ZIP codes have now surpassed a median sale price of $5 million.
The leading locations for 2025 are:
- 1. 33109 – Miami Beach, FL: $9.5 million
- 2. 94027 – Atherton, CA: $8.33 million
- 3. 11962 – Sagaponack, NY: $5.93 million
- 4. 92661 – Newport Beach, CA: $5.72 million
- 5. 11976 – Water Mill, NY: $5.5 million
- 6. 93108 – Santa Barbara (Montecito), CA: $5.24 million
- 7. 94970 – Stinson Beach, CA: $5.23 million
- 8. 92657 – Newport Beach (Newport Coast), CA: $5.19 million
- 9. 94022 – Los Altos, CA & 92662 – Newport Beach, CA (tie): $5.1 million
- 10. 92067 – Rancho Santa Fe, CA: $4.99 million
These figures illustrate the intense concentration of wealth in specific real estate markets. The data reflects ongoing shifts in where the nation's wealthiest individuals are choosing to buy property, with Florida and established California hotspots leading the way.
