Greenwich Ranks Second Most Expensive U.S. Community

PropertyShark's top 100 zip code ranking includes seven Connecticut zip codes, with six reaching record prices.

Updated on Nov. 3, 2026 in Residential

Bold flat-color vector editorial illustration of a stately shingle-style house with a white-columned porch among tall maples, evoking Connecticut's high-value real estate. — Greenwich, Connecticut ranks as the second most expensive U.S. community, with its 06870 zip code averaging $3.04 million in closed sales. AI Illustration. Upload story photo >

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PropertyShark ranked the top 100 most expensive U.S. zip codes, including seven in Connecticut. Greenwich 06870 ranks first in the state and 45th overall, with an average closed sale price of $3.04 million.

Why it matters

The ranking shows continued price strength in Connecticut's Fairfield County communities, where six of the state's seven top-100 zip codes reached record prices. Fifteen states placed zip codes in the top 100, and Connecticut is among 11 states reaching new record prices.

PropertyShark's ranking uses average closed sale prices by zip code, with Greenwich 06870 at $3.04 million and Greenwich 06830 at $2.56 million. The source does not detail the sales period or the baseline used to classify six Connecticut zip codes as reaching record prices.

The players

PropertyShark

PropertyShark is a real estate data and market intelligence company that publishes property price rankings and analytics.

The details

Greenwich holds four zip codes in the top 100, led by 06870 at $3.04 million, with 06878 the first Connecticut zip code to surpass $3 million. Darien ranks 60th, Norwalk 65th and New Canaan 81st, while Old Greenwich 06870 and Central Greenwich 06830 set new record highs at $2.83 million and $2.56 million.

• The PropertyShark top 100 zip code ranking was published on November 3, 2026.

Market Context

PropertyShark's top 100 ranking places Connecticut communities among the nation's priciest zip codes, with Greenwich ranking second among U.S. communities by number of top-100 zip codes. The placement of six Connecticut zip codes at record prices extends the state's standing in the high-end residential market tracked by the annual ranking.

Homebuyers and sellers in Connecticut's top-priced zip codes face record average sale prices, with Greenwich 06878 now above $3 million. Buyers in the region should weigh these benchmarks when comparing listings in Greenwich, Darien, Norwalk and New Canaan.

The takeaway

Connecticut's Fairfield County communities continue to lead the state's high-end residential market, with multiple zip codes ranking among the most expensive in the country. Readers tracking home values can use zip-level rankings to compare local price trends against national benchmarks.